31.   He said Intel engineers may not be able to identify the source of the problem until next week.

32.   He urged cooperation between gravity-wave specialists and other astrophysicists in identifying the sources of gravity waves, which still hold many mysteries.

33.   He wanted to design a simple means for police to identify the source of explosives used in bombings.

34.   Hoecherl said the findings show the need to identify the sources of pollution and the need to take steps to eliminate them.

35.   Huse said that since the flyers appeared on cars or bulletin boards in places like churches and seniors centers, it was impossible to identify their source.

36.   If that were to occur, they said, they would refuse to identify their sources, relying on the protections of the First Amendment.

37.   In addition, reporters and columnists who grant anonymity must be prepared to identify the source to at least one supervising or senior editor.

38.   In addition, scientists now have the ability to match the genetic fingerprints of the bacteria found in patients who contract an illness so they can identify the source.

39.   Investigators have been unable to identify the source of her infection.

40.   It could reopen negotiations and ask the Russian government to identify additional sources of revenue.