Previously been published in Lawfare (Jan. 15, 2021), in this paper David Kris reviews new National Security Agency guidance designed to regulate signals intelligence (SIGINT) activity that implicates US persons’ privacy and the Fourth Amendment. Officially an annex to the manual of rules governing all DOD elements—DOD Manual 5240.01—the new “SIGINT Annex” replaces the prior… Continue reading The NSA’s New SIGINT Annex