41.   Monroe acknowledged that outfitting airports and commercial aircraft with such a surveillance system would be an expensive, massive undertaking.

42.   Monroe says that he has invented such a surveillance system.

43.   Most companies will refuse unethical contracts -- such as setting up a surveillance system in a locker room, he said.

44.   Minneapolis maker of closed-circuit TV surveillance systems.

45.   New additions to the surveillance system include ground-based microphones that listen to the air for low-frequency sounds far below the range of human hearing.

46.   Northrop is also a leading designer and manufacturer of military surveillance systems on combat aircraft, as well as marine and space systems.

47.   Now two actions by the drug agency have put this drug surveillance system in the spotlight.

48.   Right now, technological Silver Bullet-ism is being eagerly embraced by companies that sell biometric devices, surveillance systems and every other conceivable kind of gadget.

49.   Salient Stills is considering a version of its software that could be embedded in private surveillance systems.

50.   She also stressed that the government urgently needs to expand its efforts to develop national pharmaceutical and vaccine stockpiles and to improve disease surveillance systems.