The efforts initiated toward increased school security had come to a standstill several years after the Columbine High School massacre as federal and state funding toward safety was cut in favor of higher test scores . Although an increase in communication with law enforcement was evident in the Platte Canyon High School shooting , Del Elliot of the University of Colorado noted that " the vast majority of school districts are so totally absorbed with CSAP and academic requirements that they are n't spending a lot of time and resources on this issue "
Columbine High School massacre
Columbine High School massacre
Platte Canyon High School hostage crisis