Iraq is not Vietnam. However, the political debate about Vietnam presents a number of valuable lessons that war opponents should be learning. Fast, as in before the 2008 presidential election process starts in earnest. Since candidates are already coming forward to fill what will almost certainly be an open seat (unless Dick Cheney has filled it for some reason), this means war opponents need to act now. Anti-war activists have great difficulty convincing the majority of Americans that the US should simply abandon Iraq. Even those who opposed the March 2003 invasion of Iraq are now reluctant...