[a_witness]

Passenger left area before being questioned further.

No security officer could be that incompetent, even in SF. There has to be more to the story.

[Greenpointer]

(San Francisco-AP) -- Thousands of people were evacuated from a United terminal at San Francisco International Airport this morning after a man left a security gate with explosive residue on his shoes.

Airport spokesman Mike McCarron says a check of the man's sneakers showed some type of explosive residue. He said it could have just been from fireworks. The man walked away before the investigation could be completed.

The man has not been found.

McCarron says domestic gates 61 to 89 have been affected -- and all flights at those gates are being held.

(Copyright 2002 by The Associated Press. All Rights Reserved.)

[skeeter]

No security officer could be that incompetent, even in SF.

One trip thru SFO and you'd change your mind.