31.   The Federal Aviation Administration has made bomb detection its top security priority, but the agency has tried to balance security against saving airlines money and travelers time.

32.   The memorandum of agreement marks the first time that leaders of both countries have signed a formal document of cooperation on Israeli security against weapons of mass destruction.

33.   The missile-shield program, whatever its merits, must not militate against efforts to improve security against other kinds of threat.

34.   The Nasdaq market scrutinizes listed companies for trading irregularities, providing investors with a degree of security against stock manipulation.

35.   The Nuclear Control Institute has long advocated tougher security against terorrists, such as large barricades and open areas to guard against truck bombs.

36.   The success of such an offering could depend on how explicitly the government guarantees the securities against default.

37.   They have been tested for various kinds of transit accidents, but their security against attack with an anti-tank weapon or other armament is less certain.

38.   Washington claims that an antimissile defense system will not be directed against Russia and is a defensive measure to assure U.S. national security against new, post-Cold War threats.

39.   Yesterday, the U.S. asked Yasser Arafat, chairman of the Palestine Liberation Organization, to increase security against suicide bombers in Israel.

40.   Yet they are incapable of acting as an efficient constabulary, providing the average Colombian with security against crime, kidnapping or assassination.