Just a few hours after the tragic shooting last Friday in Newtown, Connecticut, which killed 20 children and six adults, my colleague suggested that we should discuss gun control in our weekly Across America Talk video program.

But the question we immediately asked ourselves was what we could discuss about gun control. We had just extensively discussed the subject in July right after the theater shooting in Aurora, Colorado, which took 12 lives.

In between, there was a shooting in August at the Sikh temple in Oak Creek, Wisconsin, in which seven people died, and then the shooting just days before the Newtown rampage in a shopping mall in Oregon, which killed three.