Since the presidency of Reagan, US policy towards Syria has been one of hostility. Syria was one of the neocons target--Iraq, Syria and Iran. A central reason for the US hostility is Israel. The supporters of Israel--the neocons--have made any Syrian-US rapprochement all but impossible. The appointment of an ambassador is worthless when that ambassador is prohibited from going to his station. Keeping Syria on the terror list, erecting obstacles to Syria’s economic dealings with other countries, failure to condemn Israel for its attacks on Syria, and ignoring the illegal occupation of the Golan Heights are pretty good signs that the US is not seriously interested in reaching an agreement with Syria. Having botched the job in Iraq, an endless war in Afghanistan, growing animosity with Pakistan, secret wars in Yemen and Africa, Bahsir Assad sounds like he hit the nail on the head.
Saudi forces kill two militants after failed car-bombing (AP)
from the article: Syria spurns U.S. bid to mend ties