America's Biggest Overseas Air Base Stores Tomahawk Missiles Without Blinking, Is Now Officially Terrified of a Taxi

The most heavily armed address in the western Pacific has finally identified the enemy, and it has cupholders. Since Monday, Kadena Air Base in Okinawa has been turning away every vehicle made by China's BYD at every gate: private cars, contractor vans, delivery trucks and, most chillingly, taxis. The base has stored a missile launcher that can reach 1,600 kilometres. It cannot, apparently, survive a hatchback reversing into a parking space.

"These vehicles present an unacceptable and unmitigable risk to our personnel and our mission," said Lt. Col. Alli Stormer, spokesperson for the 18th Wing. Unmitigable is a powerful word. It is the word you use for a volcano, not a sedan with a tyre-pressure warning. Somewhere a BYD idled at the gate with its hazard lights on, which in this climate counts as a confession.

The fear is the modern car itself: cameras, sensors, GPS and software that phones home more often than a college freshman. Officials worry all of it could beam fighter jets, radar and munitions straight to the cloud. For decades the Pentagon feared spies in trench coats. It now fears spies with lane assist, heated seats and a cheerful chime when you forget your seatbelt.

Spare a thought for the taxi driver, who woke up a small-business owner and went to bed a suspected intelligence asset. He did not ask for this. He asked for a fare to the commissary. Now his car is treated like a submarine that took a wrong turn, and his passenger walks the last stretch carrying groceries, a backpack and the full weight of national security.

The delivery trucks have it worse. The parcel is turned around at the gate, the food goes cold, and the base relearns the oldest lesson in warfare: an army marches on its stomach, and its stomach is now stuck outside the fence.

U.S. Forces Japan offered a broader explanation. "Installation commanders are responsible for protecting their people, facilities, and assigned missions and may implement lawful, risk-informed security measures necessary to mitigate credible threats," said spokesperson Col. John Severns, in a sentence with the length of a convoy and the warmth of a parking ticket. Translated from the original Pentagon: the commander looked at the car and did not like its face.

To be fair, the paper trail is long. In June the Pentagon put BYD on a list of 188 "Chinese military companies." In late September the Dutch government warned that cars' GPS, microphones, cameras, entertainment systems and Bluetooth could be used for spying by state actors. Europe has officially conceded that the radio might be listening, which explains why your car's voice assistant always seemed so curious about your weekend.

Observers expect the ban could spread to Futenma Air Station and to U.S. bases in South Korea, meaning the Pacific alliance may soon be defended by a perimeter of increasingly nervous traffic cones. The jets will keep flying. The Tomahawks will keep their range. And outside the gate, a taxi with a backup camera waits patiently, the only thing in Okinawa that America has looked straight at and decided was too dangerous to let in.