U.S. forces killed or captured about 15,000 suspected militants in Iraq last year, the top U.S. commander in the country said Wednesday, suggesting that the American military has underestimated the strength of the insurgency. The new figures seemed to show that previous estimates of an insurgent force of 6,000 to 9,000 fighters were inaccurate, Army Gen. George W. Casey said in a rare meeting with the U.S. media here. Full Story