11.   Authorities at first believed the engineer may have suffered a heart attack.

12.   Authorities at first speculated that Woods might have taken the children as revenge against their mother, Schwana Patterson, because she reported the burglary.

13.   Authorities at the National Insurance Crime Bureau in Palos Hills, Ill., declined to say whether they had helped authorities with a VIN in the Oklahoma case.

14.   Authorities at Heathrow in London block two Swissair jets from leaving, pending payment of fees.

15.   Authorities at Logan Aiport, anxious about mad cow disease, will confiscate it.

16.   Authorities at several East Coast beaches on Monday were allowing only ankle-deep wading in the surf because of the currents.

17.   Authorities at the Massachusetts Department of Correction said the state is not currently burdened by any court-ordered relief plan.

18.   Authorities at first said the melee stemmed from a fight among prisoners and racial unrest in Tent City.

19.   Authorities at Fort Huachuca said Pecard was just a cop on the base, even though he posed as an investigator while working with Arizona law enforcement.

20.   Airport security directors often have to mediate between airlines, the police and city halls, but these positions will have unquestioned authority at airports.