1.   Bomb sniffing dogs searched the Science Center as the Microsoft king droned on with his marketing message.

2.   Bomb squad dogs patrolled the terminals, along with increased numbers of plainclothes and uniformed airport police.

3.   --Adding more bomb dogs.

4.   All bomb dogs train regularly to keep their senses keen.

5.   In New River, bomb sniffing dogs patroled the halls.

6.   Now only passengers are allowed there, and then only after they and their baggage are cleared by metal detectors and bomb dogs.

7.   Once the concourse had cleared, police bomb dogs walked through.

8.   Trained bomb detection dogs can spot quantities of explosives that the finest machines cannot detect.

9.   Bomb sniffing dogs patrol check-in counters.

10.   Bomb sniffing dogs search the tents every morning and extra security cameras have been installed.