I think it's reasonable that the government, when it has a warrant from a court, when it's exposed to scrutiny by a legal process that would be upheld, not just nationally, but internationally as a reliable and robust standard rights protection, they can enjoy certain powers. This is no different from having the police able to get a warrant to go and search your house, to kick at your door because they think you're an arms dealer or something like that. There needs to be a process involved, it needs to be public, and it needs to be challengeable in court at all times.
