Immigration and Customs Enforcement (ICE) has used a system called Giant Oak Search Technology (GOST) to help the agency scrutinize social media posts, determine if they are “derogatory” to the U.S., and then use that information as part of immigration enforcement, according to a new cache of documents reviewed by 404 Media.
The documents peel back the curtain on a powerful system, both in a technological and a policy sense—how information is processed and used to decide who is allowed to remain in the country and who is not.
“The government should not be using algorithms to scrutinize our social media posts and decide which of us is ‘risky.’ And agencies certainly shouldn't be buying this kind of black box technology in secret without any accountability. DHS needs to explain to the public how its systems determine whether someone is a ‘risk’ or not, and what happens to the people whose online posts are flagged by its algorithms,” Patrick Toomey, Deputy Director of the ACLU's National Security Project, told 404 Media in an email. The documents come from a Freedom of Information Act (FOIA) lawsuit brought by both the ACLU and the ACLU of Northern California. Toomey from the ACLU then shared the documents with 404 Media.