11.   Advocates of student rights argue that officials are overreacting to the hype after school shootings such as the deadly rampage at Columbine High in Colorado.

12.   Bush blamed for school shootings.

13.   But a series of deadly school shootings is chipping away at that sense that children are protected in schools.

14.   But he says that in light of the school shootings, he has to take the threats seriously.

15.   But in the wake of the Colorado school shootings last month, it has also become a vehicle for amendments imposing new limits on guns.

16.   But other experts noted that while bullying may have played a role in some recent school shootings, its contribution must be viewed in context.

17.   But the school shootings in Littleton, Colo., last month have caused further strains, particularly between the makers of handguns and the rifle association.

18.   But to a school administrator in a society of deadly school shootings, it could be the cover for a dangerous weapon.

19.   But the school shootings in the last year and a half led him to change his mind and become the crucial vote in the Senate.

20.   But the tide of school shootings has caused Mountain Lakes, like other suburban schools, to shed its sense of privileged immunity.