There is a more serious concern for us stoners in this story and no it's not because they found pot in this guy's apartment or something, although given the sheer number of young people that do smoke that's a very real yet irrelevent thing. The real concern though is this. When you think about what direction we've been headed since 9/11 and then try to think of how to stop things like this and then examine what this guy was like, the conclusion is to encourage the public to spy on and report suspicious behavior more. This guy went unnoticed because he was a recluse. Someone that kept mostly to himself and when around others never revealled much info. He was also well educated and studying at graduate level. There wasn't anything that set him apart other then he kept to himself mostly. The only thing one report found was that his neighbors noticed that either earlier that night or the night before he was playing "Techno" music really loud. Now think of how that compares to an important part of the security measures we practice. To avoid the risk of detection we try to keep to ourselves in our communities and not let anyone know too much about us. Bam, now suddenly we're some suspicious nut who might go on a shooting spree if we play music too loud or do anything someone else thinks is unusual.