The Olympic protective shield will include 1, 000 members of an anti-aircraft artillery unit.

NPR: Venezuela Copes with Crumbling Infrastructure

For the four billion people not fortunate enough to live in economic nirvana behind America's protective nuclear shield, it is a self-proclaimed messiah using its unlimited power to destroy and then recreate the world in its image.

ECONOMIST: Letters | The

How protective is this shield in the face of perfect information about goods and services?

FORBES: Digital rules

Department of Correction spokeswoman Kelly Nantel said Geoghan had been held in protective custody to shield him from the general prison population, but he still had some contact with other inmates.

BBC: 'Priest killer' faces charges

Increasing numbers of divers are using a protective electronic device, called Shark Shield, while they work.

CNN: Divers embrace anti-shark device