The Supreme Court's landmark ruling overturning Washington, D.C.'s handgun ban could have implications for colleges that prohibit firearms on their campuses. Last month the court declared for the first time that the U.S. Constitution's Second Amendment protects an individual's right to keep a gun, not just the right of states to maintain armed…

People can bring guns most places in Arizona, but the state's Board of Regents has long banned all weapons from public college campuses. Now some lawmakers are trying to change that. State Senator Karen S. Johnson, a Republican, proposed a bill in January that would trump the regents' ban, allowing anyone with a concealed-weapons permit to carry a…