U.S. gun control activists called for expanded background checks for firearms purchasers and for a ban on sales to people on federal watch lists on Monday, in a protest marking the third anniversary of the massacre at a Connecticut elementary school.<br />Speakers including U.S. Representative Gerry Connolly, a Virginia Democrat, and survivors of recent U.S. mass shootings made their call outside the Fairfax, Virginia, headquarters of the National Rifle Association lobbying group.<br />About 100 people attended the protest in the Washington suburb.<br />On Dec. 14, 2012, 20-year-old Adam Lanza shot and killed 20 first-graders and six educators at Sandy Hook Elementary School in Newtown, Connecticut, an attack that stands as one of the deadliest mass shootings in U.S. history.
