Drug runners were behind a bomb attack on one of President Hamid Karzai’s running mates just days before Afghanistan holds an historic election, Interior Minister Ali Ahmad Jalali said Thursday.The accusation reinforces Western concerns that Afghanistan could slide back to become a narco-state unless the winner of Saturday’s presidential election acts to sideline influential private militia commanders and drug lords. Vice-presidential candidate Ahmad Zia Masood, the brother of assassinated resistance hero Ahmad Shah Masood, escaped unhurt, but Wednesday’s blast, detonated by remote control, killed two people and wounded three traveling in the same convoy.Full Story