The D.C. Court of Appeals agreed in a 2 to 1 ruling that police agencies that use cell-site simulators (https://www.washingtonpost.com/news/true-crime/wp/2017/09/21/police-use-of-stingray-cellphone-tracker-requires-search-warrant-appeals-court-rules/?utm_term=.c78695f086a4) like Harris Corporation’s StingRay product must obtain a search warrant before use. Police on the campus of Georgia Tech shot and killed a student who was wielding and refusing to drop a knife, after the student had called police to report a student with a knife. And the Oklahoma City Police Department is again in the news, after officers shot and killed a deaf man with mental health challenges, after the man wielded a two-foot pipe at officers and failed to drop it.