BY JANESS ANN J. ELLAO Bulatlat Posted 8:54 p.m., May 14, 2008 The Pagkakaisa ng mga Samahan ng Tsuper at Operator Nationwide (PISTON) belittled the government’s proposal to extend a P2.00/liter fuel subsidy to all public utility vehicleoperators after the Land Transportation and Franchise Regulatory Board (LTFRB) said that the local petroleum dealers will shoulder…