The other study, focusing on walking form, comes from University of Utah biology professor David Carrier.

CNN: Running debate: Bare or in shoes?

David Neeleman, the discount carrier's chief, first used at-home workers when he ran Morris Air 12 years ago, well before offshoring became a political issue.

FORBES: The Slipper Solution

Sprint plans to support the device a marketing campaign to promote the new category of tablets, according to David Owens, who is runs the carrier's marketing for product launches.

WSJ: Sprint to Sell Samsung Tablet for $400

"TSA continues to closely monitor the review of the incidents as well as the security protocols being conducted by the air carrier and the airport authority, " spokesman David Castelveter said.

CNN: STORY HIGHLIGHTS

David Miliband, the environment secretary, told the BBC on Sunday that throw-away carrier bags would become a thing of the past within a few years.

BBC: NEWS | UK | Christmas plastic bag ban urged