1.   Alliant also makes rocket motors, and unmanned aircraft.

2.   Because the technology is still evolving, researchers at Boeing say the earliest widespread use of structural health monitoring will be in unmanned aircraft.

3.   Both countries are considering a U.S. offer to provide technical surveillance that could include motion sensors, satellite images and observation by unmanned aircraft.

4.   For the engineers working on an unmanned aircraft designed by NASA and AeroVironment Inc., the legend is more challenge than warning.

5.   Harrison said in the future, unmanned aircraft will do a lot more.

6.   Global Hawk, which made a journey across the Atlantic last year, will become the first unmanned aircraft to fly across the Pacific.

7.   Having lost the coveted Joint Strike Fighter competition to Lockheed Martin last year, Boeing sees unmanned aircraft systems as its long-term fighter business.

8.   In another airstrike earlier this month, Afghans claimed that an unmanned Predator aircraft mistakenly killed a group of peasants with a Hellfire missile.

9.   In Skopje, Macedonia, the secretary also inspected six unmanned aircraft that are being used for reconnaissance along the Kosovo border.

10.   It is developing an unmanned combat aircraft that could be highly lucrative and, unlike Lockheed, has a commercial airline business.