The upcoming World Cup, featuring 48 teams, 36 base camps, and 11 stadiums, presents one of the most formidable security challenges the FBI has ever encountered.

Fans who hear the whirring sound of a drone over a stadium might see it as a nuisance but law enforcement has long viewed those aircraft as a potential weapon of mass destruction

Security is heightened for the World Cup with a strict no-drone policy over stadiums. Law enforcement has new powers to disable or shoot down drones. The FBI is treating all…