{{Episode Data
| title= A Measure of Salvation
| image= Amos.jpg
| season= 3
| episode= 7
| guests= [[Lucy Lawless]] as [[Number Three]]
| writer= [[Michael Angeli]]
| story=
| director= [[Bill Eagles]]
| production= 307
| rating=
| US airdate= November 10, 2006
| UK airdate=
| dvd=
| podcast=Y
| population= 41,420
| prev= [[Torn]]
| next= [[Hero]]
}}

== Overview ==
:''[[Lee Adama|Apollo]] and [[Sharon Agathon|Athena]] are dispatched to investigate the derelict baseship. They find the humanoid [[Cylons]] dying from a virulent disease, which inspires [[Lee Adama]] to come up with a desperate plan against their enemy.''

== Summary ==
=== On ''[[Galactica (RDM)|Galactica]]'' ===
*A boarding party comprising of [[Raptor]]s and [[Viper Mark VII|Vipers]] investigate the derelict [[Basestar (RDM)|basestar]]. Among the boarding party are [[Lee Adama|Apollo]] and [[Sharon Agathon|Athena]].
*Aboard the derelict, [[marines]] explore the corridors, finding the [[Cylon agent|Cylons]] dead. Athena attempts to access the derelict basestar's [[Hybrid]], but is unsuccessful.
*Some "skinjobs" around the control center revive and advise the boarding party of the situation regarding the probe and subsequent infection of the Cylons. One of the infected Cylons, a [[Number Eight]], addresses Athena as "traitor."
*The boarding party and prisoners are en route back to ''Galactica'' when the basestar self-destructs.
*''Galactica'' quarantines the boarding party and prisoners while Dr. [[Cottle]] finds out if the virus affects humans. The human members of the boarding party are cleared while Athena is ordered to stay put, as her blood work hasn't been done. [[Karl Agathon|Helo]] is infuriated, but wants to be notified as soon as her results are available.
*Dr. Cottle's investigation identifies [[Lymphocytic encephalitis|a virus]] that can be treated, but not cured for Cylons. [[Laura Roslin|President Roslin]], [[William Adama|Admiral Adama]], Lee Adama, and Helo discuss the idea of taunting the vaccine in exchange for information. A [[Simon]] is brought before them, and informs them that the entire baseship was abandoned, because [[Resurrection (RDM)|resurrection]] would infect the others. He also mentions that [[Gaius Baltar]] provided the information on the path to [[Earth]].
*Aboard ''[[Colonial One]]'', Lee Adama suggests a plan to eliminate the entire Cylon race by executing their prisoners in range of a [[Resurrection Ship]], where the downloaded consciousnesses would infect the remaining Cylons, because according to [[Simon]] the virus carries a bioelectric feedback component that could spread it even through the download process. Helo scoffs at the idea, considering it genocide.
*Aboard ''Galactica'', Athena finds she's immune because of antibodies generated within her body by carrying her daughter, [[Hera]]. Helo tells her of the Fleet's plan, and Athena understands.
*Admiral Adama shows slight dissent about the plan, indicating regulations that forbid him to proceed without presidential order. Despite the ethical ramifications, the President authorizes the biological attack.
*''Galactica'' jumps to a Cylon supply line, and launches Vipers and Raptors to attract the Cylon fleet. In the midst of this, Helo initiates a plan to thwart the execution, unplugging what looks like a standard power connector from an environmental control box.
*The Cylons jump into the area, with Resurrection Ship in tow. Adama orders the execution of the prisoners.
*Lee Adama leads a team to execute the prisoners, but finds that all the prisoners have been killed prior to the Resurrection Ship arriving. Adama orders a recall, and ''Galactica'' escapes without sustaining any major damage.
*Helo converses with Athena about his actions. He maintains that what he did was right, regardless of the consequences.
*Aboard ''Galactica'', Adama reports that the prisoners were suffocated due to a failure in the environmental controls. Roslin is quick to point out one or two might be responsible, but Adama closes the issue. Subsequently, the virus was most likely an accidental exposure, similar to one reported 3000 years ago. Adama points out that they're on the right track to Earth, but Roslin notes that the Cylons are on the right track as well.

=== On a [[Basestar (RDM)|basestar]] ===

*Aboard the bastestar, Baltar is being interrogated by Three and Caprica-Six, knowing about the beacon. Three and Caprica-Six imply that Baltar is connected to the virus and to Galactica. Baltar attempts to reconcile, only to be confronted by Centurions.
*In his "projection", his mental Six tells him to relax. Meanwhile, his body is being subjected to torture; Caprica Six is visibly disturbed by the torture and backs away.
*Baltar's torture continues as Three continues to interrogate Baltar regarding his supposed involvement with the virus. In his mind, he attemps to avert the pain by making love to his mental Six. Despite extreme pain, Baltar endures.

== Questions ==

* If [[Adama]] had brought the beacon aboard, what kind of information would it have given them about the location of Earth?
* Will [[Caprica-Six]] continue to stand by and permit Baltar's mistreatment at their hands?
* Where is Caprica-Six's own internal Baltar in all of this?
* Of the Cylons, which type told the basestar to self-destruct: The [[Hybrid]] or a [[Cylon agent]]? Considering her odd look after the destruction, might it have been [[Sharon Agathon|Athena]]?
* When the basestar self-destructed, was it an indicator that the hybrid on the ship had died, thus no longer able to maintain the integrity of the ship?
* If the basestar and the virus did represent a true genocide threat to the Cylons why did they just leave them to slowly expire? Why not nuke the basestar and prevent (a) the disease itself and (2) information about the disease from getting out?
* What kind of new start are the [[Cylon]]s planning for [[Earth]]? Just a new home planet, an attempt at human Cylon relations not tainted by the destruction of the Twelve Colonies, or something else?
* Why did an entire Cylon fleet (including a [[Resurrection Ship]]) jump to the encounter with ''Galactica''? Why was the [[Resurrection Ship]] not left behind somewhere else, as it was done in previous battles?
* Is D'Anna in love with Baltar?
* Why is [[Gaeta]] so surprised to hear that Baltar is alive, given the fact that he was actually there when D'Anna offered Baltar to be evacuated from New Caprica?
* Why does [[Simon]] so quickly claim science can not provide a solution to the infection?
* Why wasn't the execution squad in place and waiting with the prisoners so the plan could have been implemented in a timely manner?
* Since the plan was to execute the prisoners then jump away, why wasn't the jump drive already spun up and ready?
* The environmental controls seem to have been circumvented by [[Karl Agathon]] pulling a single plug. In a combat ship aren't there cascading fail safe systems to protect against such catastrophic failures from simple system malfunctions?
* In his discussion with [[Laura Roslin]] at the end of the episode, [[Admiral Adama]] is aware that sabotage was involved in the death of the Cylon prisoners, yet he states there will be no investigation. While he might be relieved that the plan wasn't carried out, wouldn't he be seriously concerned and want to aggressively pursue this matter?
*[[Baltar]] calls the [[Number Three]] torturing him "D'Anna". Is she, or at least does Baltar believe she is, the same Number 3 that was previously masquerading in the fleet as a reporter?
*Has Starbuck regained full flight status, because she tried to pull her life together at the end of "[[Torn]]", or does she participate in the battle due to a pressing need for pilots?
*Will there be any consequences of the sabotage for Helo and Athena from other crewmembers who may figure they are behind said sabotage? How will this affect Helo's reputation as a Cylon-lover or his credibility as XO?
*Since the Cylon prisoners died after the jump, did they download and spread the infection despite Helo's sabotage? Raiders generally operate within range of a Resurrection Ship and ''Galactica'' encountered two Raiders immediately after the jump.
*If this virus is such a threat to the Cylons what about others? With a population of 40,000+ humans the colonists must have some nasty viruses which could be used for trial infection into Cylons.
*Will Athena's words to Helo about her commitment to keep her word stay true should she ever discover that Hera is alive? Will she live up to her promise to Adama and the fleet?
*Is Helo's act of sabotage & his view that the Cylons did attempt to co-exist with humans the beginnings of a more conscious act of betrayal to the fleet, thus following a similiar pattern as how Athena eventually switched sides. Would Helo thus become like Athena and eventually identify himself with the Cylons?
*Is it possible that while torturing Balter number 3 actually belived that god was talking to her through Gaius?? He has been the hand of God before could he also be the voice?? When he said "don't stop, I love you" and "I belive in you" it is possible that this may have given D'eana the reasurance she needed that she is on the right track.
*Don't the Cylons have any superior AV equipment like a video camera with a live feed? Giving Baltar only a camera meant he could selectively photograph or omit as he saw fit (fortunately for them he wasn't clever enough to do this).
*Why did Baltar both take photos of the suspicious object and claim to have seen nothing suspcious? Didn't he realise the Cylons would review the documentation he had been sent to retrieve immediately discover his lie? Wouldn't it have been better to not take photos of the object?

== Analysis ==

*The Cylons could have cured themselves of this plague relatively quickly, if ''Galactica'' had succeeded in infecting them. It was quickly noted in the episode that Sharon was immune herself because fetal cells from [[Hera]] created effective antibodies against the virus. Hera is immune to the virus because she is a hybrid Human-Cylon. Now that she is in custody of the Cylons, Baltar could have utilized her immunity, as he previously did on Roslin, as capital to further his self-preservation amongst them.
**It can be assumed that executing the captured Cylons will send them back to the Resurrection ship, thus infecting the Cylon network.
**For the Cylons to study the plague they would have become infected themeselves, therefore, there was no way they could've tried to find a cure without potentially perishing
*The wider implications of such an event could have been religiously meaningful to the Cylons. Cylons have time and again shown religious deference by sometimes overlooking rational explanations. By saving the Cylon race Hera could have been elevated to messiah status, if her very creation has not already ordained her as one to the Cylons because their God proclaimed her creation.
**The presence of Hera is profound enough to the Cylons, which could be preventing them from seeing that Hera could be used as a tool.
*There is a fundamental flaw in the plan [[Lee Adama|Apollo]] develops: Even if the virus successfully infects the [[Resurrection Ship]], the other Cylons would isolate that individual ship, thus preventing a widespread epidemic. The resulting impact on the Cylon fleet would be no greater than previous destruction of the Resurrection Ship in "[[Resurrection Ship, Part II]]".
**Apollo's plan is based on an account of the Cylon analysis of the threat; he could simply assume they are correct and that the virus can spread like wildfire from one Resurrection Ship to another.
**Also, by infecting a greater mass of ships, Galactica could board the ships, take much needed resources and more infected Cylons for further use as biological weapons.
*The science of the virus is somewhat questionable. While the biological aspect is sound, the existence of a "bioelectrical feedback component" appears to be technobabble. It would be impossible for a biological virus (i.e. a physical pathogen) to be transmitted by download to the Resurrection Ship. Such a feedback - scrambling the brainwave patterns - could disrupt the download process, but it is unclear how it could spread the virus itself on the other side. It simply may be a case of cylon superstition, which is known to happen from time to time.
**From Dr. Cottle's dialogue, it would appear that the problem lies with how the Cylons' immune systems reacts with the virus, more than the virus itself. If this is the case, it is likely that the immune system's reaction would carry though the download and possibly be passed to other Cylons througout the network.
**Conceptually, there is actually very little difference between a physical and a computer virus. Both usurp cell function. Moreover, if the virus is a retrovirus, its genome (be it physical or digital) will be transcribed into the cellular DNA, which might be downloaded to the Resurrection Ship.
**Furthermore, one has to note that not only were the human-form Cylons infected, but all types, including the baseship and the raiders were disabled. The evidence indicates that there was some sort of disruption for the more mechanically inclined cylons. This may be the "bioelectrical feedback component" that the Simon model highlights. He further explains that this feedback causes a disruption to the Cylon brain and inhibits their immune system.
*Dr. Cottle explains that Cylons carry antibodies that break down the RNA of his proposed vaccine. However antibodies have no disintegrative functionality, and only prime recognized pathogens for phagocytosis, though he may have simplified the explanation. But as vaccines are developed from the pathogenic organism (or a close relative) it would be impossible for the Cylons to carry antibodies specific for the vaccine RNA (or for the products it encodes) or otherwise they would be immune to the pathonogenic virus itself.
*Adama's reaction to the premature death of the prisoners is yet another example of what are simultaneously his greatest virtues and most glaring flaws - his dedication to those under his command, and his need to keep his conscience clear.
*In this episode, [[Raptors]] are shown loaded to the teeth with weapons systems. In the past ([[Miniseries]], [[The Hand of God]]), Raptors have rarely been depicted in actual combat, preferring instead to hang back while coordinating battlefield logistics. They have been shown armed in a few prior episodes ([[Kobol's Last Gleaming, Part II]], [[Fragged]]), but this is by far their most prominent combat role to date. The Raptors are using the external missile pods and cannons introduced in "Exodus, Part [[Exodus, Part I|I]] & [[Exodus, Part II|II]]" and engage in the same maneuver used to launch the decoy drones during the Battle of New Caprica.
*The genetic pool the Cylons were created from predates the human immunity to the plague from just a couple hundred years ago, yet the Cylons, even as a class of machines, are only 40 to 60 years old. This indicates another, non-Colonial, source for the DNA.
**The genetic pool need not be so old. Because humans had been completely immune to this virus for hundreds of years, the Cylons may have simply overlooked it while creating their biological models.
*It seems this virus could also be a fairly reliable (although not conclusive) litmus test to for Cylons in the Colonial Fleet.
*It seems reasonable to assume that if Baltar is not infected with the virus, he is not a Cylon, likewise for all members of the ''Galactica'' crew who boarded the baseship.
**Baltar was in an isolation suit the entire time he was on the basestar. Using standard biohazard procedures, he would have remained in the suit which would have been disinfected from the outside before he took it off.

== Notes ==
*[[Survivor count|Fleet population]] is 41,420. Barring any births, there is an unaccounted loss of at least two since "[[Torn]]".
*The story behind the Lion Nebula beacon and the virus may have been inspired by the lunar lander [[wikipedia:Surveyor 3|Surveyor 3]]. Before launching in 1967, its camera was accidentally contaminated by a common bacterium. When the camera was recovered by Apollo 12 astronauts, the microbes returned to life, having survived two and a half years of vacuum, radiation, and temperature extremes.
*This is the first episode in which [[Saul Tigh]] has not appeared, more than likely due to his promise to William Adama at the end of "Torn" after Adama's confrontation with both Tigh and Kara Thrace. Currently, the only characters to have appeared in every episode are [[Laura Roslin]] and [[William Adama]].
*Helo has been promoted to the rank of Captain, as evident in both dialogue and costuming.
*Starbuck appears to have returned to flight status following her decision to pull herself together at the end of "[[Torn]]".
*Dr. Cottle identifies the disease as [[Lymphocytic encephalitis]], however [[w:encephalitis|encephalitis]] is a condition (swelling of the brain) that can be caused by a pathogen, not a pathogen itself. More likely the pathogen is [[wikipedia:Lymphocytic choriomeningitis virus|Lymphocytic choriomeningitis virus]].
*In [[Podcast:A Measure of Salvation|his podcast]], Moore notes that this episode shares similarities to the ''[[MemoryAlpha:Star Trek: The Next Generation|Star Trek: The Next Generation]]'' episode, "[[MemoryAlpha:I, Borg|I, Borg]]", though he does not mention the episode by name. Moore also noted that this episode was brought up for discussion during the writer's meetings to discuss development of this episode, as "I, Borg" discussed using a lone [[MemoryAlpha:Hugh|Borg drone]] implanted with a computer virus to infect the [[MemoryAlpha:Borg|Borg collective]].
*The location in space of the attempted attack on the Cylons is designated "The Region of [[NCD2539]] Above/North."
*The Cylon [[Hybrid]] does not appear in this episode despite actress Tiffany Lyndall-Knight's name appearing in the ending credits.
*A scene depicted in a promotional photo showing Number Six and Three in a projected forest was apparently cut from the episode.

== Noteworthy Dialogue ==
*''On Colonial One'':
:'''Karl Agathon''': Genocide? So that's what we're about now?
:'''Lee Adama''': They're not human! They were built, not born. No fathers, no mothers, no sons, no daughters--
:'''Karl Agathon''': I ''had'' a daughter. I held her in my arms.

== Official Statements ==

== Guest Stars ==

* [[Aaron Douglas]] as Chief Petty Officer [[Galen Tyrol]]
* [[Tahmoh Penikett]] as Captain [[Karl Agathon|Karl "Helo" Agathon]]
* [[Alessandro Juliani]] as Lt. [[Felix Gaeta]]
* [[Kandyse McClure]] as [[Anastasia Dualla]]
* [[Rick Worthy]] as [[Simon]]
* [[Callum Keith Rennie]] as [[Leoben Conoy]]
* [[Donnelly Rhodes]] as Doctor [[Cottle]]
* [[Matthew Bennett]] as [[Number Five]]
* [[Bodie Olmos]] as Lt. [[Brendan Constanza|Brendan "Hot Dog" Constanza]]
* [[Leah Cairns]] as Lt. [[Margaret Edmondson|Margaret "Racetrack" Edmondson]]
* [[imdb:nm0669826|Eileen Pedde]] as Sgt. [[Mathias]]
* [[imdb:nm0461101|Tiffany Lyndall-Knight]] as [[Hybrid]] (credited)

== References ==
<div style="font-size:85%"><references/></div>

{{Episode list (RDM season 3)}}

[[Category:Episodes written by Michael Angeli]]
[[Category:RDM]]