It is impossible to know with any precision whether the wars in Iraq and Afghanistan have created more terrorists than they've killed, Defense Secretary Donald H. Rumsfeld said Thursday. In his first extensive remarks about a recent U.S. intelligence report saying the threat of terrorism has risen, Rumsfeld told reporters at a NATO meeting that, in general, the value of intelligence reports can be uneven, and "sometimes it's just flat wrong." But he added that, "the implication that if you stop killing or capturing people who are trying to kill you, then therefore the world would be a better place,...