While the number of attacks against coalition forces in Iraq has dropped more than 50 percent since November, the sophistication and complexity of those attacks is increasing, a coalition official said today. Brig. Gen. Mark Kimmitt, the deputy director for coalition operations, told reporters during a press briefing that Iraqi insurgents are using different weapon systems during a single attack, such as small arms fire following the detonation of an explosive device. "Those are attacks that take a little more...