You can call the American embassy directly for consultation. If you want to supplement your resume, you should fail. If you sign it, you have to take your passport, then give you a piece of paper (the color varies from place to place, but I got white), and then take this paper to the post office near the embassy to choose whether to pick up your passport, send it locally or send it off-site. If you pick it up, you can get it back at the designated post office in about three days, and if you mail it, it will be received in about 4~5 days.