11.   Federal officials said the incident began when an airport worker in London reported that someone who resembled a published photograph of a terrorist had gotten onto the plane.

12.   Even when the incident began, the authorities said they did not believe the substance was anthrax.

13.   He said the incident began as he was washing windshields at his usual spot on an exit of the Major Deegan Expressway.

14.   Israeli television said that the incident had begun when settlers complained about the presence of Palestinian journalists at the meeting.

15.   Jo had taken some visiting relatives to the White House to take pictures when the incident began.

16.   On Capitol Hill, the incident was beginning to bite into fragile hopes for building a constructive relationship with the most populous nation on earth.

17.   Rigby said the incident began because passengers complained to the flight crew about how unruly the girls were being.

18.   Rodgers said the incident began when he got into a fight outside his apartment building with a woman he had been dating.

19.   Several participants said the incident began with shouting among players and parents over rough play, and eventually escalated, with parents shoving and punching one another.

20.   Soon after the incident began, helicopters appeared overhead and the White House grounds were covered with SWAT teams and Secret Service agents.