It is well documented, this a good documentary about it [1]
And it was not the worst case. The US government infected people intentionally with syphilis and gonorrhea in Guatemala during the 40's to research about STD [2], last week the U.S. goverment was sued over those syphilis tests [3].
And it was not the worst case. The US government infected people intentionally with syphilis and gonorrhea in Guatemala during the 40's to research about STD [2], last week the U.S. goverment was sued over those syphilis tests [3].
[1] http://www.youtube.com/watch?v=Brj6RGuB-es&feature=relat...
[2] http://www.msnbc.msn.com/id/39456324/ns/health-sexual_health...
[3] http://www.cbc.ca/news/health/story/2011/03/14/syphilis-guat...