The Obama administration on Friday proposed two new gun control regulations aimed at clarifying restrictions on gun ownership for the mentally ill and strengthening a database used for background checks before firearm purchases. The measures are the latest step in a year-long push by President Barack Obama to tighten U.S. gun laws in the wake of a school shooting in Newtown, Connecticut, where 20 children were killed. Obama tried last year to bring in sweeping new gun... (GunPolicy.org)