The analysis shows that it is possible to make a CW missile have the ability to attack armed helicopters and balloon targets without sacrifices of original low-air performance through adjustment.

Under the terms of the contract, SRA, of Fairfax, Va., will help various Air Force programs to improve employee and organizational performance, the Defense Department said.

The measures are aimed at curbing the high levels of air pollution in Beijing, which may affect the performance of athletes during the Games.