ARLINGTON, Va. - Mothers and fathers, brothers and sisters paid tribute Sunday to loved ones killed in the first Persian Gulf War and said they supported President Bush's efforts to again send Americans against Saddam Hussein. AP Photo "I'm behind our president 100 percent," said Sally Minich of Hawthorn, Pa., at a ceremony at Arlington National Cemetery remembering the more than 400 men and women who died in the Gulf War. Her 20-year-old son, Frank J. Walls, died in an Iraqi Scud missile attack. Joyce Wilbourn of Huntsville, Ala., said armed service families generally are more supportive...