The Republican-controlled Missouri legislature is expected to enact a statute next month nullifying all federal gun laws in the state and making it a crime for federal agents to enforce them there.
Alaska, Louisiana and Montana had the most gun deaths of any U.S. states in 2010, and they fall among the states with the weakest gun laws, according to the Center for American Progress.
States with more gun-control legislation, such as Massachusetts, New Jersey and Connecticut, have lower rates of gun-related deaths than states with fewer gun-control laws.
Fontana Unified School District's school police officers will now check out a semiautomatic rifle each morning to bring with them on their patrols from school to school.
Renewing the assault weapons ban is only one of multiple proposals and 23 executive actions laid out by President Obama in response to the Newtown massacre.