This arguement annoys the hell out of me, especially coming from old men who'm have been out of college for decades, if they even went at all...
I get what you guys are saying, but you just have this attitude that life is a war zone, and its you vs. everyone else. How many University's are in the United States? Over 30,000? How many shootings have there been in the past year? 5 or 6? I'd say college campus's are pretty damn safe. As I recent graduate of college, I would have been very much against 10 guys (or girls) carrying hand guns to my chem, poli sci and english classes.
"If only more people carried guns, then we could have shot dead the senile 85 year old driver before he lost control of his car and plowed into a crowd of people".