Despite 83,000 public cameras, crime in Mexico City remains high—and widespread surveillance raises myriad ethical issues.

For decades, blood pressure has been a static snapshot taken in a clinic, once or twice a year, often under fluorescent lights and leading to patient anxiety. (I have yet to meet someone who is not at ...

Spies were indispensable during World War II, with networks like France's La Résistance gathering critical intelligence and ...

From hotel rooms to rental apartments, hidden cameras are more common than many realize. This article explores how tiny, affordable surveillance devices have spread - and why it’s now easier than ever ...