Retired Marine Gen. James Jones, who is reportedly being eyed for a top job in the Obama administration, is not ruling out the possibility of returning to government. Jones, president and chief executive officer of the U.S. Chamber Institute for 21st Century Energy, has served recently as the Bush administration's special envoy for Middle East regional security. He also led a study that slammed the handling of the Afghanistan war after retiring from the military in February 2007 as NATO's...