Pakistan prime minister urges Obama to end drone strikes --- (Reuters) - Pakistani Prime Minister Nawaz Sharif on Wednesday urged U.S. President Barack Obama to end drone strikes in Pakistan, touching on a sore subject just as relations between the two countries improve after years of suspicion over Afghanistan and the U.S. counterterrorism fight. --- The United States has quietly restarted security assistance to Pakistan after freezing aid during the period of soured relations, when Washington frequently voiced complaints about the ties of the Pakistani intelligence service to militant groups active in Afghanistan. - More, reuters