It also always lead to the same downward spiral of prosecutors complaining that the data they need to investigate drug trade is right there, but they can only a

It also always lead to the same downward spiral of prosecutors complaining that the data they need to investigate drug trade is right there, but they can only access it for terrorism reasons, so why not add drug trade to the list of exceptions. Repeat with homicide, then fraud, all the way down to traffic infractions.