The US government has begun asking select foreign travelers to disclose their social media activities as part of an expanded effort to prevent terrorist threats. From now on, travelers have to submit their Facebook, Twitter, Google+, Instagram, and LinkedIn, YouTube or what else that they use to the online Electronic System for Travel Authorization (ESTA). Previously, it has been announced that entrance of foreigners who deny to give their social media information, would not be prohibited to enter the country.
However privacy rights activists say there are few guidelines about how the information, once obtained, is used or shared with other agencies. Also, The Internet Association, which represents companies including Facebook, Google and Twitter, has argued that policy threatens free expression.
The US government approves around 10 million visaapplications in a year and had 77.5 million foreign visitors in 2015. Collecting social media accounts for all visitors would produce one of the largest databases.