Afghan officials say long-term security agreement with the U.S. is still on hold --- KABUL — More than a year after negotiations began over a long-term security agreement between the United States and Afghanistan, representatives of both countries remain at an impasse over key issues that would allow American troops to remain here beyond 2014. --- The primary unresolved issues involve the Afghans’ insistence that the U.S. military do more to stem the flow of terrorists from Pakistan and their resistance to unilateral U.S. military operations, said Aimal Faizi, a spokesman for President Hamid Karzai.- More, washingtonpost