Particularly interesting is this section of their website called "Why Revolution?", about various revolutionaries' etc. takes on why revolution seems to become necessary to certain peoples at certain times.
"Why Revolution?
What drives individuals to protest perceived social injustices? Why do some join groups or commit violent actions? What motivated the young people who formed the Symbionese Liberation Army? And why did these acts increase so dramatically in the late 1960s and early 1970s? Program interviewees discuss the reasons behind revolutionary attitudes."
http://www.pbs.org/wgbh/amex/guerrilla/sfeature/sf_excerpts.html
Also interesting, and on the same website, is this "What's Your Bag?" quiz:
http://www.pbs.org/wgbh/amex/guerrilla/sfeature/sf_bag_pop_00.html
-B.