21.   Boeing and Lockheed Martin have built the spy plane, and Boeing scientists are studying the robot fighter.

22.   A U.S. Navy spy plane on a routine surveillance mission near the Chinese coast collided with a Chinese fighter jet that was closely tailing it on Sunday.

23.   A tiny, pilotless spy plane that can be fired from a cannon is under development at the Massachusetts Institute of Technology.

24.   According to Apple, titanium is stronger than steel but lighter than aluminum, which accounts for its use in mountain bikes, fancy watches and spy planes.

25.   After all, spy planes are hardly using international air space to listen in on the fish.

26.   Almost instinctively, they understood that their husbands and wives, mothers and fathers, could have been aboard the downed spy plane or another like it.

27.   Already in use as a midget spy plane, the Predator remote-controlled airplane has been patrolling Bosnia and Iraq.

28.   But a videotape from an unmanned Predator spy plane showed Roberts being dragged from the scene by al-Qaida fighters.

29.   But within days, Iraq threatened to shoot down a US spy plane and the confrontation with US inspectors also began to develop.

30.   China has long regarded the flights of U.S. spy planes, which hug the Chinese coast almost daily on electronic eavesdropping missions, as an affront to Chinese sovereignty.