Is it logical to assume that, even if other countries have carried out false flag operations (especially horrible regimes such as, say, the Nazis or Stalin), the U.S. has never done so? Well, as documented by the New York Times, Iranians working for the C.I.A. in the 1950's posed as Communists and staged bombings in Iran in order to turn the country against its democratically-elected president (see also this essay).
And, as confirmed by a former Italian Prime Minister, an Italian judge, and the former head of Italian counterintelligence, NATO carried out terror bombings in Italy with the help of the Pentagon and CIA and blamed communists in order to rally people's support for their governments in Europe in their fight against communism. As one participant in this formerly-secret program stated: "You had to attack civilians, people, women, children, innocent people, unknown people far removed from any political game. The reason was quite simple. They were supposed to force these people, the Italian public, to turn to the state to ask for greater security."
Moreover, declassified U.S. Government documents show that in the 1960s, the U.S. Joint Chiefs of Staff signed off on a plan code-named Operation Northwoods to blow up American airplanes (using an elaborate plan involving the switching of airplanes), and also to commit terrorist acts on American soil, and then to blame it on the Cubans in order to justify an invasion of Cuba. The operation was not carried out only because the Kennedy administration refused to implement these Pentagon plans.
SOURCE: www.wanttoknow.info/falseflag