You would only go to NK if you knew nothing about the place. The most superficial google reveals that you only have to sneeze carelessly to risk arrest. Like Albania in the '70s. Snorkellers drifting north out of Greek waters would be summarily shot on the beach as spies. Tourists were under armed guard supervision for their stay. Cameras were effectively banned (can't have pictures of the wood fuelled steam engines from the Marxist paradise getting out ....).
Brash, ignorant Americans have been abroad for generations. "Waiter, bring me a dry sherry, and make sure it's none of that Spanish crap!" He got away with that in an English sherry house restaurant; in Spain, in the sixties, they'd probably have run him through with a rapier!
