USA is Evil? USA has its own value? USA can do anything to defend it own benefit?

Was revealed the U.S. government in 1946 to 1948 living in Central America, Guatemala, syphilis and gonorrhea to find other ually transmitted diseases, experiments, testing the effectiveness of penicillin in the prevention of ually transmitted diseases, about 1,500 people without the knowledge became the "victim", including the military , prisoners and mental patients. President of Guatemala Collom rebuked the study of "crimes against humanity"