Airline passengers arriving in Britain escaped chaos early Wednesday despite dire predictions of long waits, as border staff joined teachers, hospital workers and weather forecasters in the country’s largest strike in decades, the Associated Press reports. The one-day strike has been called in protest at the government’s plan to make public sector pensions less generous in the years ahead. The pension reforms are part of a package of austerity measures designed to get a grip on the country’s high borrowing levels. London’s Heathrow Airport and scores of airlines had warned that international travelers could be held in lines for up to 12 hours at immigration halls as a result of staff shortages…