The background: On April 21, 2001, the CIA's liaison officer at the U.S. Embassy in Prague was briefed by the Czech counterintelligence service (known by its Czech acronym, BIS) about an extraordinary development in a spy case that concerned both the United States and the Czech Republic. The subject of the briefing was Ahmad Khalil Ibrahim Samir al-Ani, the consul at Iraq's embassy in Prague. .... So when al-Ani replaced Salim at the Iraq Embassy in Prague in 1999, both the United States and the Czech Republic wanted him closely watched in case he had a similar assignment. The BIS...