Buying a Tesla comes with some unusual perks. Like falcon doors. And "ludicrous mode." And now, protection from bioterrorists.
When Elon Musk announced the Model X on Tuesday in Fremont, Calif. -- Tesla's first foray into the sport utility category -- he mentioned a new feature: "Bioweapon defense mode."
"If there is ever an apocalyptic scenario of some kind, hypothetically, you just press the bioweapon defense mode button," he explained.
It's the futuristic military-grade version of the air-recirculation button that comes...