Fascinating stuff from Gallup. The under-30 cohort is pretty strongly anti-war, with 56 percent saying the invasion of Iraq was a mistake and only 41 percent saying it wasn't. The slightly older thirtysomething cohort, by contrast, is the only one with a pro-war plurality -- 48 percent say mistake, 50 percent say no mistake. The fourtysomethings are also relativley hawkish 52-47. All the over-50 cohorts are more anti-war than the under-30 cohort.