AdvertisementTwitter Sues Homeland Security To Protect Anonymity Of 'Alt Immigration' AccountApril 06, 2017Camila DomonoskefacebookEmailA now-deleted tweet from @ALT_USCIS was included in a complaint Twitter filed against the Department of Homeland Security. Twitter says DHS tried to unmask the user behind this account, which has "expressed dissent in a range of different ways," including this early tweet that "the author apparently believed cast doubt on the Administration's immigration policy." (Twitter/U.S. District Court Northern District of California)