In September 1970, ex-Harvard professor and 'High Priest of LSD' Dr. Timothy Leary escaped from prison with the aid of the radical Weather Underground. Spanning twenty-eight months, President Nixon's careening, global manhunt for Dr. Timothy Leary winds its way among homegrown radicals, European aristocrats, a Black Panther outpost in Algeria, an international arms dealer, hash-smuggling hippies from the Brotherhood of Eternal Love, and secret agents...

The Weathermen. The Symbionese Liberation Army. The FALN. The Black Liberation Army. The names seem quaint now, when not forgotten altogether. But there was a stretch of time in America, roughly between 1968 and 1975, when there was on average more than one significant terrorist act in this country every week, and the FBI combated these groups and others as nodes in a single revolutionary underground, dedicated to the violent overthrow of the American...