In January 2005 , Churchill 's work attracted controversy because of the circulation of a 2001 essay , " On the Justice of Roosting Chickens " , in which he argued the September 11 attacks were a natural and unavoidable consequence of unlawful US foreign policy over the latter half of the 20th century ; the essay is well known for Churchill 's use of the phrase " little Eichmanns " to describe the " technocratic corps " working in the World Trade Center .