Gen. Martin Dempsey, chairman of the Joint Chiefs of Staff, told reporters late yesterday that although he is not yet planning a so-called "zero-option" to remove all US forces at the end of 2014, a failure to sign the deal it could make it an "unfortunate possibility."
The US wants it signed by the end of the month, but Afghan President Hamid Karzai has so far refused to do so. It could keep thousands of US troops in Afghanistan for up to a decade.