1.   Security guards patrol the perimeter night and day.

2.   Security guards patrol the perimeter.

3.   Armed with walkie-talkies, they patrol the perimeter while the Broncos work.

4.   Federal agents patrolled the perimeter of the building, assisted by bomb-sniffing dogs.

5.   Hoarding gasoline, the Freemen increasingly patrol their perimeter on horseback.

6.   Hundreds of police and military troops patrolled the perimeter.

7.   Moore also hired a private security guard to patrol the perimeter of the White House.

8.   Outriders on camels patrolled a perimeter of sand dunes.

9.   Other troopers patrolled the perimeter of the field.

10.   Patrolling the perimeter were jack crevalle, together with lookdown, a silvery, blade-like fish that could easily pass for kitchen cutlery.