11.   Mystically reunited by short-wave radio, father and son collaborate on averting family tragedies and on preventing and solving some murders committed three decades earlier.

12.   Only the courageous efforts of two pilots, some dumb luck and plenty of praying helped the Lakers avert tragedy.

13.   Schools end up in a delicate balancing act, between averting tragedy and recognizing time-honored rites of passage, between zero tolerance and zero fun.

14.   Since then, the transit agency has taken steps to avert such tragedies.

15.   The source could be the United Nations, the OAU or individual countries interested in averting predictable tragedies.

16.   They made stabs at helping, but not enough to avert tragedy.

17.   William Johannes, Boston center president of the National Air Traffic Controllers Association, credited TCAS with averting a tragedy.

18.   While the on-board TCAS systems on the two planes may have averted a tragedy Sunday night, those systems nearly caused a mid-air collision south of Albany on Tuesday.

19.   Appalling conditions in overcrowded Rwandan jails are growing increasingly worse despite appeals from the Red Cross to avert a tragedy, the Red Cross said Friday.

20.   Sporting Shooters Association of Australia president Ted Drane has rejected suggestions a national gun register could avert future tragedies.