Marketplace PM for July 31, 2007
There are still many unanswered questions about the safety of nanotechnology, but the FDA doesn't require any regulations when it's used in products. Commentator Bill Hammack says to be wary.
The House overwhelmingly passed a bill today requiring lobbyists to disclose their contributions to charities with ties to members of Congress. But the bill has some contenders as it moves on to the Senate. Steve Henn reports.