US Apologizes for 1940s Guatemala Syphilis Experiments Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Guatemala's President Alvaro Colom, in a press conference on October 1, 2010 where he described as'crimes of lese-humanity' the study conducted by the U.S. more than 60 years ago in Guatemala. ( JOHAN ORDONEZ/AFP / Getty ) Produced by PRI and WNYC