Filmmaker Eugene Jarecki’s latest documentary, Why We Fight, is a powerful essay on American foreign policy in the age of the military-industrial complex. Borrowing the title from a series of World War II propaganda films directed by Frank Capra, Jarecki examines the military as an economic engine, the development of weapons systems and the history behind America’s involvement in war, from Vietnam to the Middle East. Appearing in the film are Richard Perle, John McCain and Gore Vidal.  CM