The United States and Pakistan say they have reached a trade agreement that is expected to allow Washington to help develop Pakistan’s largely untapped oil reserves and lower tariffs for the South Asi

By Kanishka Singh, Asif Shahzad and Ariba Shahid WASHINGTON/ISLAMABAD (Reuters) -The U.S. and Pakistan have struck a deal that will result in lower tariffs for the South Asian nation as well as an agreement in which Washington will help develop Islamabad's oil reserves,