A Laotian man that Thai police say is the region's most wanted drug lord was arrested at Suvarabhumi airport yesterday. Chaichana Kaewphimpha, 41, was apprehended by a force of 100 drugs suppression officers and police as he attempted to leave the departure lounge after returning from a trip to Phuket. Also arrested were a male friend and two females in his party. Sommai Kongwisaisuk of the drugs suppr