Come on, sd, you and I both know that the meters-and-feet "mixup" was totally bogus. A very clever cover story that NASA put out trying to explain why 2/3 of the 53(?) Mars landers/missions have "failed" to date.
If the public ever was told the real truth--that the Martians have shot down 2/3 of the UFOs that have reached Mars from Earth--there could be chaos in the streets. Better to take one for the team, and come up with a really really clever "Doh!" excuse instead.