Previously, scientists have proposed that AIDS came from monkeys. This video argues, based on the book The River, that AIDS came from "an experimental polio vaccine during the late 1950s." Maybe monkeys still had something to do with contaminating the vaccine, but I guess we won't get a better picture until December 1st.

"Startling in its thesis, compelling in its argument and chilling in its measured presentation, this award-winning documentary by Peter Chappell and Catherine Peix delves into the possible origins of AIDS in the jungles of Zaire (formerly the Belgian Congo)."

"The Origin of AIDS" airs Monday, Dec. 1, 10:30 am to noon on the Sundance Channel.