Twenty years ago this week, my book, IBM and the Holocaust, exposed—backed up by a tower of documentation— that IBM knowingly organized all six phases of the Holocaust: identification, exclusion, confiscation, ghettoization, deportation, and even extermination. All of this occurred under the micromanagement of IBM’s celebrated CEO, Thomas Watson, Sr., operating from his New York office on Madison Avenue, and later through European subsidiaries. In view of what IBM was able to accomplish on behalf of the Nazis prior to the era of the computer, the thought of what big tech can now do to surveil, censor, and control human lives is sobering indeed.