Each year, tens of thousands of Americans are implanted with tiny battery-controlled devices that regulate the beating of their hearts. Those devices transmit streams of medical data directly to doctors.
But some patients, like Hugo Campos of San Francisco, fear they're being kept out of the loop.
David Greene talks to Rick Knabb, the newly named head of the National Hurricane Center. Knabb is currently the Weather Channel's resident hurricane expert. When he previously worked at the National Hurricane Center as a meteorologist, he was one of the lead forecasters for Hurricane Katrina.
Today is Memorial Day, the day we remember the men and women who've died while serving in the Armed Forces. In Kabul, Afghanistan, the top U.S. commander, General John Allen, laid a wreath at a garden across from his headquarters. And he read a letter written by Marine Sergeant William Stacey to his parents in Seattle.