I think EDRs are a good idea (Score 1)

There is a reason for crash investigations. That is to improve safety. An EDR that records relevent information up to five seconds prior to a crash is a good thing. More information leads to better analysis of what happened.

However, I don't think this information should be allowed to be used as a "tattle tail" in other situations. The information should ONLY be useable in a crash investigation.