As smog hangs over Lahore, Pakistan's new pollution squad races to douse stubble fires

By Mubasher BukhariLAHORE, Nov 14 (Reuters) - As smog again settles over large parts of South Asia, Pakistani authorities are widening a crackdown on illegal stubble burning they say is fuelling the region's annual pollution crisis.On Thursday, officers of a new quick-response unit swung off their vehicles at a paddy field on the edge of Lahore. Smoke curled low over…