But Williams and Wiley both think it's the right thing to do given the history of attacks on schools in the U.S. and the recent attacks in nearby San Bernardino.

但是威廉姆斯和韦利都认为，考虑到美国之前发生的校园袭击案和近期在邻近地区圣贝纳迪诺发生的袭击案，这样做是正确的。