81.   They envisioned a portable surveillance system that could quickly inform soldiers of imminent, unseen dangers.

82.   Treaty opponents say the global surveillance system would be useless for verifying treaty compliance and ideal for creating jobs for third-world scientists and diplomats.

83.   Two years ago, Raytheon expanded its electronics business by buying E-Systems, which specializes in surveillance systems, aircraft modification and electronic imaging.

84.   Video surveillance systems now account for about one-third of the market and that percentage is growing, he said.

85.   We have some very, very good market surveillance systems.

86.   Watson said a research team at the University of Pittsburgh and Carnegie Melon University is among a handful trying to develop more powerful disease surveillance systems.

87.   While there is nothing in the arsenal of security systems that can prevent such incidents, there has been a dramatic uptick in interest in surveillance systems and shelters.

88.   Peru and Colombia rely on U.S. ground radar stations and aircraft to support a surveillance system to spot unauthorized planes.

89.   A few stadiums already have surveillance systems, but some need overhauls.

90.   A regional computerized surveillance system looks for common symptoms that could signal a biological attack.