| ALONG A LONELY STATE HIGHWAY on central Montana's high plains, I approach what looks like a ranch entrance, complete with cattle guard. "The first ace in the hole," reads a hand-etched cedar plank hanging from tall wooden posts. "In continuous operation for over 50 years." I drive up the dirt road to a building surrounded by video cameras and a 10-foot-tall, barbed-wire-topped fence stenciled with a poker spade. "It is unlawful to enter this area," notes a sign on the fence, whose small print cites the Subversive Activities... |