Another fix would be to ban high-capacity magazines. It’s not clear yet whether the Connecticut shooter used a jumbo magazine, but given the body count, and the fact that at least some of the victims were reportedly shot multiple times, it seems quite like likely that he did. High-capacity magazines were a feature in the Giffords shooting, at Virginia Tech, and at Fort Hood. The gunman in Aurora was able to shoot seventy people in under two minutes because his AR-15 had a one-hundred-round drum. An outright ban would provoke significant political opposition, and raise questions about what to do with large magazines already in circulation. But with his extraordinary rhetorical powers, Obama should surely be able to articulate that the only non-military context in which a high-capacity magazine proves decisively useful for the shooter is one in which you are trying to mow down as many civilians as possible before you get killed by a SWAT team.