"This is a critical time for our nation, and the American people deserve to hear both candidates speak from the heart."Presidential candidates John McCain and Barack Obama will make their first joint appearance at a public forum with the Rev. Rick Warren on Aug. 16 at California’s Saddleback Church. “The primaries proved that Americans care deeply about the faith, values, character and leadership convictions of candidates as much as they do about the issues,” Warren said in a news release. “This is a critical time for our nation, and the American people deserve to hear both candidates speak from...