BAGHDAD, Iraq - At a parade ground where Saddam Hussein once reviewed his troops, American soldiers gathered Saturday to remember and shed tears for eight comrades and three journalists who died during the war. "We are standing at the heart of a regime that struck fear into the hearts of the people," said Col. David Perkins of Keene, N.H., commanding officer of the 3rd Infantry Division's 2nd Brigade. "There are things worth dying for," he said. "Freedom is one of those things." At the center of the ceremony were eight M-16 automatic rifles with bayonets, stuck into a wooden bench....