8 people in Rolling Fork Mississippi survived the tornado in this cooler in what had been a drive in next to a trailer court. I think it demonstrates what a system of tornado shelters could do. https://www.usatoday.com/story/news/nation/2023/03/25/rolling-fork-mississippi-diner-workers-survive-tornado-refrigerator/11542144002/
Retired Analytical Chemist
League of Women Voters -voting methods, election security
Board Member Colorado Citizens for Science