In an effort to prevent future foreign meddling in elections, Facebook has begun rolling out a fix: Anyone who wants to buy a political or issue ad in the United States must have a Social Security number along with a U.S. passport or valid driver’s license. “This is excluding an important part of the nation who are being affected by its policies,” Rep. Adriano Espaillat, a New York Democrat who was undocumented in the U.S. in his youth, told VICE News.