N.Y. CITY EYES

New York is considering installing surveillance cameras in Lower Manhattan in its fight against terrorism, similar to the “ring of steel” in London.

Police department experts visited London in the fall to look at its system of closed-circuit cameras posted at points in its financial district and near landmarks. Those cameras helped London police quickly provide images of suspected bombers during the terror attack in the London Underground last summer.

The city already has 1,000 cameras in its subways, with plans to add another 1,000 surveillance cameras and 3,000 motion sensors over the next three years.