31.   A similar command center in Los Angeles is in a sub-basement of City Hall, four floors below ground level.

32.   A test of the computer system at the command center that was staged about a month ago disclosed some glitches.

33.   A sudden chorus of cries broke through the din of the command center as the truck veered off onto a tiny dirt lane and stopped.

34.   A variety of robotic cannons and missile launchers could deliver the firepower, supplementing their built-in intelligence with help from a distant, manned command center.

35.   After the towers collapsed, every phone went dead at police headquarters downtown, the home of its own command center.

36.   After the towers fell, officials confronted obstacles that went beyond just the collapse of the command center.

37.   After twenty minutes of bombing against the convoy, the command center in Italy wanted the planes to check the targets again and make sure that they were military.

38.   After twenty minutes of bombing the convoy, the command center in Italy wanted the planes to check the targets again and make sure that they were military.

39.   Air Force doctrine calls for striking government ministries, television stations, electrical plants and command centers from the outset.

40.   Airlines and officials at the command center will talk as frequently as every two hours, if disruptions warrant that, to plot strategic plans.