And it may still be impossible to ignore what happens outside the security cordon.

ECONOMIST: British banks

He crossed the security cordon placed around his house and attempted to walk to the Supreme Court.

WSJ: Pakistani Judge Gains Clout

According to the police, Friday morning's shoot-out happened when members of the clan opened fire as security forces were tightening a security cordon around the village.

BBC: Malaysian police carry a colleague's coffin

Inside the cordon, Kenyan security officials were busy trying to play down both incidents.

BBC: Kenya dragged into Somalia conflict

"Since last Tuesday, the Iraqi Security Forces have been conducting cordon and strike operations against criminal elements across Basra, supported by efforts to encourage militias to give up their medium and heavy weapons, " he said.

CNN: UK halts troop cuts after Iraq clashes

Security forces armed with riot gear and water cannons formed a cordon around the protesters.

BBC: Demonstration in Tbilisi on 28 September

"Beyond The Cordon" bus tours take sightseers behind chain-link security fences to see the ruins of the Feb. 22, 2011, quake.

NPR: 2 Years On, Slow Quake Recovery In New Zealand

There is no ability to cordon off a whole marathon route and treat miles of urban streets with the degree of security at, say, a baseball stadium.

WSJ: William Bratton: A Cop's-Eye View of Terrorism