This doesn't surprise us, because we made this claim back in 2001, in our article "BMW - No Joy: GPS is a SPOF", using Volpe 2001 as the reference paper. We pointed out that BMW made naive or misleading comments about the reliability of GPS, helping to retain an unrealistic expectation of the failure modes of a tool designed to prosecute a conventional war or the opening exchange of a nuclear war rather than help you get home in time.
We've never mentioned it, but we did get a reply from the ASA on the 29 of November 2009 -a paper one- in which they stated that:
- We were the only people that complained.
- It was meant to be metaphor, and therefore the fact that the failure of GPS could cause widescale destruction to the national transportation infrastructure was unimportant.
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