A new study suggests that increased surveillance in schools has a detrimental impact on academic performance. The experts have found that tighter school security is linked with lower test scores. According to study co-author Jason Jabbari of Washington University in St. Louis, heightened school security reduces test scores in math, reduces the number of students attending college and increases suspensions. Surveillance measures that are intended to prevent school shootings may enhance the opportunity for schools to punish students for more common and less serious offenses, and this...