I see no more reason to accept the unsupported statements of detainees that torture occurred than I do to accept the unsupported statements of Guantanamo spokespersons that nothing of the sort ever happened.

By the way, the School of the Americas has been closed for years (since 2000, I think), and the allegations that "they taught torture" were investigated on a number of occasions but never sustained. Yes, graduates of SOA actively participated in some of the worst abuses of some of the most oppressive Latin American governments...and a graduate of a Virginia high school just murdered dozens of people at Virginia Tech. That doesn't meant that all graduates of Virginia high schools are murderers. SOA was the military school in the US where Central and South American military officers went, and far more of the 60,000 graduates it had over its 50+ year existence were never associated with any abuses. Also BTW, its successor institution has a civilian "watchdog" committee that has open access to everything that goes on there.