1.   In a licensing partnership between governments and the private sector, Traffic.com has been installing digital radar sensors on tall poles along main roads in urban areas.

2.   U.S. officials said the aid would include advanced bomb-detection devices, X-ray systems, robotics for suspected bombs, and advanced thermal and radar sensors.

3.   Ultimately, cars may be equipped with radar sensors that can anticipate a crash before it occurs.

4.   U.S. officials said the aid would include advanced bomb-detection devices, X-ray systems, robotics for dealing with suspected bombs and advanced thermal and radar sensors.