On April 11, at the Bethesda naval hospital, George W. and Laura Bush looked on as Master Gunnery Sgt. Guadalupe Donogean, a Mexican wounded in Iraq, was sworn in as a U.S. citizen. Some 37,000 noncitizens, most of them Hispanic, serve in the U.S. military; Congress is speeding through legislation to make it easier for them to become citizens, and two non- citizens killed in Iraq were granted citizenship posthumously. "It was a very profound moment," Bush said outside the hospital. "We were both honored to witness this." Many Democrats fear that the vision of Bush landing on the aircraft...