“Proprietary software is an unsafe building material,” [Eben] Moglen had said. “You can’t inspect it.”

That was five years ago. On Tuesday, Volkswagen admitted it had rigged the proprietary software on 11 million of its diesel cars around the world so that they would pass emissions tests when they were actually spreading smog.

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Mandate open source.

Volkswagen’s Diesel Fraud Makes Critic of Secret Code a Prophet - Jim Dwyer