1.   Earlier, federal agents knocked on doors in the Martins Creek community to make sure residents were safe.

2.   FBI agents knocked door to door through a nondescript subdivision Friday, showing a new set of photographs of possible suspects in the deadly Oklahoma City bombing.

3.   Not only did alert Secret Service agents knock him to the ground and hustle him into a limo, but his blustery demeanor scared off the bullets.

4.   Pretty soon, FBI agents were knocking on his parents door to ask questions.

5.   Rudolph and Collins were holed up in a cabin near Stanton, Mo., when a young Pinkerton agent posing as a hunter knocked on the door.