The new requirement raises concerns about privacy and free expression. "We see this as part of a larger process of high tech surveillance of immigrants and more and more people being subjected to social media screening," Adam Schwartz, an attorney with the Electronic Frontier Foundation told BuzzFeed News . "There's a growing trend at the Department of Homeland Security to be snooping on the social media of immigrants and foreigners and we think it's an invasion of privacy and deters freedom of speech."