Family members of two children killed in a shooting rampage at Sandy Hook Elementary School in Connecticut, Mark Barden, left, who lost his son 7-year-old Daniel, and Nicole Hockley, who lost her 6-year-old son Dylan, listen to questions during a newsconference on a bill introduced that would expand gun background checks in New Hampshire. , Tuesday, Jan. 21, 2014 in Concord, N.H. (AP Photo/Jim Cole)