Dr. Drew Pinsky and Po Bronson talk to Anderson Cooper about the science behind physically disciplining children.

Cain denies the allegations and there aren't details from the accuser, so who's to be believed? Anderson Cooper reports.

CNN's Fareed Zakaria speaks with Pervez Musharraf about the security of Pakistan's nuclear weapons.

The first day of deliberation in the trial of Michael Jackson's doctor, Conrad Murray, has ended without a verdict.