WASHINGTON (AP) - U.N. investigators have identified a previously unknown complex in Syria that bolsters suspicions that the Syrian government worked with A.Q. Khan, the father of Pakistan's atomic bomb, to acquire technology that could make nuclear arms. The buildings in northwest Syria closely match the design of a uranium enrichment plant provided to Libya when Moammar Gadhafi was trying to build nuclear weapons under Khan's guidance, officials told The Associated Press. The U.N.'s International Atomic Energy Agency also has obtained correspondence between Khan and a Syrian government official, Muhidin Issa, who proposed scientific cooperation and a visit to Khan's...