1.   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.

2.   Unknown to Garcia Abrego, an alert U.S. Customs agent in McAllen was already well into the process of making his life much more complicated.

3.   Airlines were asked to alert agents if any of the individuals were spotted.

4.   An anonymous caller phoned the FBI in Portland, Ore., to alert agents that Nicholas Paul Hills was headed to a downtown Greyhound station.