Here are the big stories on the agenda today:

The top U.S. commander in Afghanistan fired, as thousands more American troops roll into that country.  Lieutenant General Stanley McChrystal will replace General David McKiernan.  Defense Secretary Robert Gates says he wants a new leader to carry out the president's new strategy.  General McChrystal is a former Green Beret who Gates says will bring a fresh approach to the conflict:

An American soldier in custody in Iraq, after he allegedly gunned down five fellow soldiers at a counseling center for U.S. troops coping with stress.  The Pentagon is promising a thorough investigation.  We're taking a closer look at the military’s effort to deal with the mental health of its soldiers.

Former Vice President Dick Cheney criticized democrats, the White House and Colin Powell.  Now Rush Limbaugh and you, our viewers are sounding off on all of it.  You'll hear what everyone's saying.  And we want you to join the debate.  Call our show hotline at 877-MYAMFIX.

A hearing begins today to find out why a flight from Newark to Buffalo just "fell from the sky,” killing all 49 passengers on board and one inside a house.  The NTSB has already hinted that the pilot wasn't ready to prevent the crash.  CNN’s Allan Chernoff takes a look at why he may not have been able to save the doomed flight.