We explore the charges of the killing of innocent civilians in the town of Haditha, Iraq and the alleged cover-up by the Marine Corps. Guests: Michael Weisskopf, senior correspondent for Time magazine, Kalev Sepp, who teaches counterinsurgency at the Naval Postgraduate School in Monterrey.

The senior senator from Massachusetts discusses Iraq, energy, the state of the Democratic party...and his dogs.

It is the 25th anniversary of the identification of the HIV virus that causes AIDS. We check in with a physician at a Boston clinic who has been treating AIDS patients since the crisis began.

Americans spend about $20 billion per year on various health supplements, but can consumers actually trust manufacturers' alluring claims?

This month, musician Miles Davis would have turned 80. We'll deconstruct music critic James Isaacs' favorite Davis tune.