Obama pledges to protect children after US shooting
17 December 2012 Last updated at 18:04 GMT
President Barack Obama has said the US must do more to protect its children in the wake of Friday's shootings at a school in Newtown, Connecticut.
Speaking at an inter-faith vigil in Newtown, Mr Obama said he would use the powers of his office to prevent a repeat of the tragedy.
He told residents that the nation shared their grief.
Laura Trevelyan reports.