Should college students and teachers be allowed to carry concealed weapons on campus?

I do NOT believe teachers or students should have the right to carry weapons to school. That is just making it alot easier for the troubled kids to follow though with their plans to kill others. We all have the right to defind ourselves but I can see this plan backfire and many more lawsuits would be filed if anything happened. We do not live in the Wild West and should not have our lives resemble that period of time in todays stressed out society.