PM May to tackle old runway problem

By Sarah Young and Kylie MacLellan LONDON (Reuters) - Prime Minister Theresa May is expected to decide where to allow new airport capacity near London this month, a long-awaited ruling that will help shape Britain's economy and trading ties following its vote to leave the European Union. May will either support plans for a new runway west of London at Heathrow, the busiest airport in both Britain and Europe, or at Gatwick to the south. At $22 billion, Heathrow would be the more expensive project