"U.S. is not unilaterally working with the Taliban"

""In a speech earlier today, Karzai seemed to suggest the United States and the Taliban were conspiring to keep the level of violence in Afghanistan high to ensure the continued presence of U.S. troops here beyond 2014. "We did discuss those comments," the secretary said, responding to a reporter's question about his meeting with Karzai. "I told the president it was not true that the United States was unilaterally working with the Taliban in trying to negotiate anything." ""