Current JW blood doctrine analogy:
Cars are banned for purchase or driving.
Use of: car exhaust, electricity generated from the battery, the cool from the AC, the heat from the heater, the radio, CD and mp3 ports, the cup holders, the glove compartment, the trunk, the comfy seats, arm rests, mirrors and the spare tire are all acceptable if your conscience allows you to use them--provided it's from a donated or borrowed vehicle. And you can't share these comforts with anyone else.
Car factories? oh, well... yeah, those are fine.
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