51.   Again, Netanyahu gave an elliptical response, muttering something about security concerns.

52.   But among some here, at least, the greatest security concerns will be the more customary ones, like rowdiness.

53.   But British officials said the delay was due to security concerns and not any rift with its coalition partners.

54.   But citing security concerns, he refused to discuss the prime suspect in the deadliest act of domestic terrorism in American history.

55.   But citing security concerns, they declined to comment on specifics.

56.   But drivers will still not be allowed to change their routes, even if they encounter gridlock, because of security concerns.

57.   But given that inmates work with pitchforks, shovels and shears, security concerns are paramount and gardeners are pat-searched coming and going.

58.   But he had security concerns as well, threatened by militant Shiite groups who blame him for the disappearance two decades ago of one of their revered leaders.

59.   But critics say politics as much as security concerns are behind the decree.

60.   But Hudzik said he had also become more sensitive to security concerns since last Tuesday.