The ACLU in this letter urged members of Congress to oppose H.R. 1625, the “Consolidated Appropriations Act, 2018,” which includes a modified version of the “Clarifying Lawful Overseas Use of Data Act (CLOUD Act).” The ACLU has a number of concerns with the legislation, but the CLOUD Act provisions alone pose such a grave threat to civil liberties – and represent a sea change in our laws governing privacy and electronic data - that they alone are significant enough to warrant a NO vote.