The former 'School of the Americas' (now called the 'Institute for Western Hemispheric Security Cooperation' or something like that) is housed in the old Infantry School (the one Building 4/Infantry Hall replaced), on main post, right across from Doughboy Stadium...
Basically, the place was set up to help teach south/central american nations with anti-communist/pro-US governments how to defeat Communist insurgencies & control the drug trade... It's still in operation, with the same purpose, under a different name... Basically, it's a chance for our southern friends to come up here and get some decent military training from folks who actually know what they're doing...
Since many of the regimes that get US support are 'anti-liberation' or whatever in the mind of the libbies, they hate the place... They're more concerned with the fact that alot of these folks stay in power by the barrel of a gun, than that the regimes in question are in power because it's in our best interest (for now) that they stay there...