There are also launchers for surface-to-air missiles, various gun placements, submarine attack torpedoes and two combat helicopters.

BBC: News | In Depth | Military Fact Files

Clement Danes -- the Royal Air Force Chapel -- on the Strand, before being transferred to the gun carriage.

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Like gun-control, the air is often filled with the promise of imminent disruption.

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He added that gun-carrying pilots, federal air marshals and airline crew members trained in self-defense provided security to protect against the misuse of the newly added items.

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The Clyde is described by the MoD as a "highly capable and versatile vessel" with state-of-the-art air and surface surveillance radars, a 30mm gun mounting and the capability to operate a variety of helicopters from her flight deck.

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The arcade is stocked with multiplayer sit-down driving games and stand-up light gun games, as well as Sonic air hockey tables, as well as traditional boardwalk games like skee ball.

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The presence on flights of gun-carrying pilots traveling as passengers, federal air marshals and airline crew members trained in self-defense provide additional layers of security to protect against misuse of the items, he said.

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Gonzales said during the trial that he had his gun pointed in the air, but he thought Anguiano, the 13-year-old, was about to lunge at him.

CNN: May 2, 2012 -- Updated 1215 GMT (2015 HKT)