Why the new initiative is so controversial among US conservatives.
Though Sens. Joe Manchin and Pat Toomey have reached a deal on background checks, a key piece of the White House’s gun control plan is still at risk of failure. The federal government is using 1960s era technology to trace guns used in crimes. The system must be updated.
As the Newtown families plead for Congress to act, lawmakers – and President Obama – admit to the complexity of gun issues. Scholars on simplicity offer some ideas.