President to visit Grand Island as his plan to allow more foreign beef imports proves unpopular in agriculture-rich stateSign up for the Breaking News US emailThe US Air Force has pulled its bombers from RAF Fairford following an investigation into an alleged planned terror attack at the base.The bombers were redeployed back to their home bases in the US, according to a Pentagon official who was not authorised to discuss sensitive military movements and spoke on Sunday on condition of anonymity.