Experts: Get Colonoscopies After Age 50

The powers of the presidency were temporarily transferred today under the 25th Amendment. While President Bush was sedated for a colonoscopy, Vice President Cheney assumed presidential powers, which have now been transferred back. But it will be two or three days before it is known if President Bush has a clean bill of health because doctors found five small growths. ABC News' David Muir spoke with ABC News' medical editor Dr. Timothy Johnson about the findings and the need for Americans to...Full Story