The head of the ethnic studies department at the University of Colorado has resigned over comments he made comparing people killed in the World Trade Center attacks to the Nazi Adolf Eichmann, who helped mastermind the murder of European Jews during World War II. In an essay published after the 9/11 attacks the professor, Ward L. Churchill, called the trade center employees 'little Eichmanns' who were "technocrats of empire" working for the "engines of profit" and as such were inevitable targets. "They were civilians of a sort," he said. "But innocent?, gimme a break." His comments came to light after he was last week invited to speak about Native American issues at Hamilton College in Clinton, N.Y. and a group of professors there raised concerns after researching some of his writings.