In UK Prisons, Drones Fly In Contraband ‘As if by Uber Eats’
Decades-old prison buildings were designed to be secure from the ground but not the air. Experts say that makes a lucrative smuggling trade hard to tackle.

© Karsten Moran for The New York Times

© Verónica G. Cárdenas for The New York Times

© Jackie Molloy for The New York Times