Pat Tillman chose to walk away from a multimillion-dollar football contract and join the military for no other reason than he felt it was the right thing to do. Documented are the facts surrounding the way the military manipulated his tragic death in the line of duty into a propaganda tool.

On 12/26/04, a series of tidal waves killed thousands and devastated communities around the Indian Ocean. With around 100 tsunamis striking the world's coastlines each decade, NOVA investigates what made the recent event so powerful and catastrophic.