Sudan has made some major adjustments to its diplomatic posture over the past year and a half. In that time, the nation abandoned its longstanding relationship with Iran and instead began working closely with Saudi Arabia and other Arab countries. This policy shift has earned Sudan both financial gain and a certain amount of diplomatic credit in the Western world. But the real prize for the country would be a normalization of relations with the United States, and there are signs that it may be able to make progress in that realm....