"In Milan a known fact is always explained by competing stories," Hendricks writes, but the stories that swirled around the February 2003 disappearance of the radical imam Abu Omar would soon point in one direction--to a covert action by the CIA. The police of Milan had been exploiting their wiretaps of Abu Omar for useful information before the taps went silent. The Americans were their allies in counterterrorism--would they have disrupted a fruitful investigation In an extraordinary tale of detective versus spy, Italian investigators under the leadership of prosecutor Armando Spataro...