title: Brazil's Temer says new graft charges part of 'irresponsible campaign'
text: BRASILIA (Reuters) - Brazilian President Michel Temer, shortly after being hit with fresh graft charges on Thursday, said in a written statement that the nation s top prosecutor is on an  irresponsible campaign  of making allegations to cover his own failures.  Temer was charged by Prosecutor General Rodrigo Janot with obstruction of justice and racketeering based on the plea-bargain testimony of the owners of the world s largest meatpacker, JBS SA. They accused Temer of taking bribes in return for political favors and of conspiring to buy the silence of a witness who could implicate the president. 