All visa services have been suspended at the US Embassy in Damascus and all consular officials as well as the rest of the embassy staff have been evacuated. I-130 cases are being transferred to Amman, Jordan as well as I-730 following to join applicants. For others, the following announcement at the embassy web site would apply:
Applicants who need to travel to the United States before resumption of full visa services in Damascus are welcome to apply for a nonimmigrant visa at any U.S. Embassy or consulate outside Syria which provides visa services. Information on the requirements for doing so and the locations of U.S. visa-issuing Embassies and consulates is available at www.travel.state.gov. The non-refundable MRV application fee must be paid in the country of application, according to procedures established by each U.S. Embassy or consulate.
No word yet on whether Syrians in the US would be eligible for Temporary Protected Status, but given the recent move by the State Department, it would seem more likely now.