Brazilian cities are building vast surveillance networksarchive~law.enforcementbrazilsurveillance> São Paulo is one of many Brazilian cities spending big on crime-fighting… morewww.economist.com 4 weeks agoTildes
The air is full of DNA — here’s what scientists are using it forarchive~sciencebiologydnaecologysurveillance> Although eDNA is already collected routinely from water, snow and soil, to… morewww.nature.com Apr 21, 2026Tildes