Churchill wrote an essay in September 2001 entitled On the Justice of Roosting Chickens . In it , he argued that the September 11 attacks were provoked by U.S. foreign policy . He compared the role of financial workers at the World Trade Center in " ongoing genocidal American imperialism " to the role played by Adolf Eichmann in organizing the Holocaust . In 2005 , this essay was widely publicized when Hamilton College invited Churchill to speak . This led to both condemnations of Churchill and counter @-@ accusations of McCarthyism by Churchill and supporters . Following the controversy , the University of Colorado interim Chancellor Phil DiStefano said , " While Professor Churchill has the constitutional right to express his political views , his essay on 9 / 11 has outraged and appalled us and the general public . "