Britsh actor Michael Sheen played David Frost in "Frost/Nixon" and Prime Minister Tony Blair in "The Queen" and two other films. He talks about those roles and playing sex researcher William Masters.
Billions spent to keep Fido healthy
Pet owners in the U.S. spent more than $13 billion on veterinary care in 2011.
Dr. Stephen Withrow, founder of the College of Veterinary Medicine and Biomedical Sciences at Colorado State University, talks about advances in veterinary oncology and how there's an increase in synergy between treating diseases -- including cancer -- in animals and humans.