President Barack Obama will travel to Newtown, Conn., on Sunday to meet with families of those killed in the shooting rampage at Sandy Hook Elementary School and thank emergency workers who responded to the tragedy, the White House said Saturday. "The President will also speak at an interfaith vigil for families of the victims as well as families" at 7 p.m., press secretary Jay Carney said in a statement. On Friday, an emotional Obama vowed to "take meaningful action, regardless of the politics," to prevent future tragedies like the shooting massacre, which killed 26 people at the school, 20 of...