> By your argument, you're okay with these sorts of requests for basically any crime. It seems to me that this kind of sweeping surveillance should only be used

> By your argument, you're okay with these sorts of requests for basically any crime. It seems to me that this kind of sweeping surveillance should only be used in extreme cases. I’m not familiar with how police departments and prosecutors (or in this case, the FBI and the Justice Department) determine how much effort to put into solving any particular crime. I’m sure they wouldn’t put as much time into solving a misdemeanor as they would a felony, and that they would put even more time into a murder than a regular felony, but I doubt they would have very many rules about whether a specific type of warrant is reasonable for a specific type of crime. I suspect that once federal investigators are involved, they probably take the position that it is an extreme case and any legal technique is justified.