Cenk and Vanguard correspondent Christof Putzel talk about how easy it is to buy guns in America. Among the many guns Putzel bought at a Texas gun show without providing identification or a background check was an AR-15, the kind of assault weapon that was allegedly used in the Aurora, Colo., shootings. Though Colorado has closed some of its gun sales loopholes, none of the states surrounding it require a background check in order to purchase a gun.