CANTON -- Julie Barkey waited for a sign from her late son, Michael Barkey, a soldier who died in Iraq last month. Last week, she had a conversation with Michael as if he were still alive. “I said, ‘Mikey, I need a sign from you. I just want a sign that you’re OK in heaven.’ ” “If I could just shake the president’s hand,” Barkey recalled saying, “I would take that as a sign.” Barkey got that sign. After his address at the Memorial Civic Center on Saturday, President George W. Bush met privately with Barkey and two other local...