NEW YORK - In an angry commentary on April 25, MSNBC’s Keith Olbermann accused Rudolph Giuliani of using the language of Osama bin Laden with "the same chilling nonchalance of the madman" to argue that Republicans would keep Americans safer than Democrats from terror. Eight days later, Olbermann hosted MSNBC’s coverage of the first debate among Republican candidates for president. ...snip... Olbermann knows to leave his opinions at home when he anchors events, said Phil Griffin, NBC News senior vice president. "Keith’s an adult," Griffin said. "He can tell when it’s appropriate to express himself in a commentary and when...