text: On January 16, 2013, President Obama outlined a series of sweeping gun control proposals, urging Congress to reintroduce an expired ban on "military-style" assault weapons, such as those used in several recent mass shootings, impose limits on ammunition magazines to 10 rounds, introduce background checks on all gun sales, pass a ban on possession and sale of armor-piercing bullets, introduce harsher penalties for gun-traffickers, especially unlicensed dealers who buy arms for criminals and approving the appointment of the head of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives for the first time since 2006.