31.   After he died, Sunny had doors put in for security reasons.

32.   After the Brookline shootings, Stern said, federal protection was extended to two other clinics, whose locations he declined to identify for security reasons.

33.   Airlines say most of the tickets they sell are nontransferable for security reasons.

34.   Air Force officials are asking the news media not to use the last name of Benito and other flight crew members for security reasons.

35.   All three companies, for security reasons, are wary of disclosing what triggers a shutdown of a card.

36.   But flagging is also important for national security reasons.

37.   But for national security reasons his work had to remain secret for years afterward, so he received no public recognition.

38.   But for security reasons it could not be shot inside the country.

39.   But for security reasons, most itineraries and lodgings are being kept secret as long as possible.

40.   But for security reasons, the White House designated that just one of the tuxedo-wearing, white-gloved waiters would serve Clinton.