I have mixed opinions about the "black boxes" in vehicles. In theory, it sounds like a good idea but I learned recently that police can quite easily download t

I have mixed opinions about the "black boxes" in vehicles. In theory, it sounds like a good idea but I learned recently that police can quite easily download the data from them (via the OBD port) and apparently it is common for them to do so when investigating accidents -- especially fatal ones. AIUI, they are not required to obtain a warrant in order to grab this data and that is my primary concern.