The White House gave a new vote of confidence to Defense Secretary Donald Rumsfeld on Thursday as yet another retired general demanded Rumsfeld resign. "Yes, the president believes Secretary Rumsfeld is doing a very fine job during a challenging period in our nation's history," White House spokesman Scott McClellan told reporters. A fifth retired general, Major Gen. John Riggs, added his voice to those opposing Rumsfeld. In an interview with National Public Radio, Riggs cited an atmosphere of "arrogance" among top civilian leaders at the Pentagon. Rumsfeld "should step aside and let someone step in who can be more realistic,"...