Afghanistan to sign U.S. security agreement on Tuesday --- (Reuters) - Afghanistan will on Tuesday sign a crucial security agreement allowing the United States to leave a small contingent of troops in the country beyond this year, U.S. officials said. -- U.S. Ambassador James Cunningham said on Monday that Afghanistan's new President Ashraf Ghani would send a representative to sign the agreement the next morning at the presidential palace in the capital, Kabul. -- Cunningham said he would sign on behalf of the United States and protocol allows Ghani to sign the document only with another head of state. -- The story corrects to show Ghani representative, not Ghani, will sign agreement.) - More, http://www.reuters.com/article/2014/09/29/us-afghanistan-bsa-idUSKCN0HO14H20140929