Alan Sipress writes in the WaPo that "As U.S. forces tracked Saddam Hussein to his subterranean hiding place, they unearthed a trove of intelligence about five families running the Iraqi insurgency, according to U.S. military commanders, who said the information is being used to uproot remaining resistance forces. Senior U.S. officers said they were surprised to discover -- clue by clue over six months -- that the upper and middle ranks of the resistance were filled by members of five extended families from a few villages within a 12-mile radius of the volatile city of Tikrit along the Tigris River. Top operatives drawn from these families organized the resistance network, dispatching information to individual cells and supervising financial channels, the officers said. They also protected Hussein and passed information to and from the former president while he was on the run."