CAMP BOOM, Iraq - U.S. forces launched a massive operation early Sunday to crush insurgents and capture senior figures from the ousted regime in a show of force designed to stem a wave of deadly attacks on U.S. troops. The operation, dubbed "Desert Sidewinder," is taking place in a huge swath of central Iraq stretching from the Iranian border to the areas north of Baghdad, and is expected to last for several days, military officials said. Americans arrested a man in Khalis, 45 miles north of Baghdad. He is suspected of recruiting young men to launch attacks on Americans, according...