When I first heard reports of the armed man outside of Obama's townhall in Portsmouth, NH, I had a feeling that we would see an escalation of this behavior. Today there were estimated to be a dozen armed outside of his appearance in Arizona.
It's a tricky situation. Technically, these people are acting within their rights. Realistically, they're bringing loaded weapons to incredibly tense gatherings. As the tension and the number of weapons increases, so does the chance that something unwarranted occurs.