I've always enjoyed this solid 3rd seasoner from the gitgo, for various favorable points reviewers here note. The bravura performance by Lee Bergere as Abe Lincoln makes this episode memorable by itself. Seeing it again recently after some few years I was struck anew. All the way back to first season, other episodes (Corbomite Maneuver, Arena etc) have featured Kirk and crew forced into confrontations staged by superior aliens. But "Savage Curtain" stands out among them for its unusual down beat ending theme of futility and frustration, redeemed by resolve to overcome. Equivalent scenarios in other episodes mostly ended with promising outlooks (Arena) even open invitations after winning over alien hearts and minds (Specter of the Gun, Corbomite) - the beginnings of what could be beautiful friendships. The closing perspective in Savage Curtain is sadder but wiser, and far more solemn - uniquely for this ST subgenre. After testing the humans and their moral concepts without satisfactory result, the unimpressed alien dismissively releases Kirk and Spock, letting them go back to their ship. But its one of Kirk's lines that, for me, tips off the subtext - about how hard it was so distressing to witness the death of the Abraham Lincoln character: "It was so hard for me to see him die again. I feel I understand what Earth must have gone through to achieve final peace." The context of the times when the show first ran, with what the country was going through in months preceding it, especially - the assassinations of RFK and Martin Luther King echoed between the words loud and clear, even though I never caught it previously. As an icon of civil rights. and an assassinated US president as well - the Lincoln character by association evokes MLK and JFK both in a single stroke. This episode's finale sounds a dramatic note as if consolatory, of grief understood and shared by the show's creators with its audience - at the time reeling alike, under the traumatic impact of violent, historic political tragedies in the news. This aspect reaches its peak when, after the seemingly dismal failure of an alien encounter so harrowing, amid bloodshed with nothing gained - Kirk reflects on the heroic inspiration of figures such as Saruk and Lincoln: "So much of their work remains to be done in the galaxy." In this one episode TREK offers the exception to its own rule, deviating from its usual idealism, whether in tragedy or comedy - by an unrelenting realism of urgent perspective. Dion's 'Abraham, Martin and John" offers an ideal comparison for this episode, from pop music of the era, in terms of themes and context. The song ministers to mass grief in the wake of real life events its lyrics reference literally, to which 'Savage Curtain' alludes figuratively by allegory (a fave among good ol' TREK's many tricks). So I rate this one a uniquely good voyage from the hallowed cellars of 1960s TREK - 'the real thing' (not the pepsi generation). Its like fine wine - some stuff only gets better with age.