Edward J. Black: “The amount--what you learn by being able to monitor precisely someone's location over a period of time can reveal all…”

I firmly believe that the United States must continue its full-throated support of freedom of expression worldwide.

If we go to the concept that the data used by technology companies to perform their functions are just business records, then a massive amount of information about everyone becomes available under a lower standard.

You are talking about a surveillance, monitoring capability which can be very detailed, very intrusive.

The level of intrusion, unwarranted and unconsented intrusion into people's private affairs--their location, their sensitive data, a variety--is something that we need to guard against.