Rumsfeld's Unkown Known, or Iraq's Initiation into Democratic Practice by Slavoj Zizek

Slavoj Zizek's article covers American  torture, and torture methods. He explaines that there is a "total lack of guilt by way of remaining ignorant of what is known." He continues to explain that as Americans, we are educated enough so to know that torture is exhisting but we chose to do nothing about it. Zizek compares American torture to Iraqi torture, He calls the Iraqi approach "anonymous" and uses the word "brutalism." In the end of the article he explains how America is the most dangerous kind of power because it takes the position of "merely defending itself." 

What are the ramifications of torture that occurs in America?
What are the specific laws that deal with torture?
Can verbal harassment in prison be considered a form of torture?