Today the feds charged nine people, seven of them union projectionists from Chicago, with a wave of arson and assault at theaters across the country. In a twist befitting any bad heist movie, the arsonists are accused of leaving calling cards: CD covers from the band Chicago, "just so the notion of the city of Chicago would be planted in the minds of the theater owners," according to U.S. Attorney Patrick Fitzgerald. The conflict between movie theaters and projectionists has been simmering for years, and the union has a history of violence and crime that goes back to the '20s and continued into the '90s. [Trib. login: gapers/gapers]