This brings us a little to what we were talking about with encryption before. In terms of the need, one of the things that is important to remember is that encrypted information is only useful if it's in an unencrypted form. When information is in that encrypted form, it's inaccessible to law enforcement, but it's also useless to its user. Everybody has to unencrypt the information at some point.
We've seen law enforcement in the U.S. target the information when it's in that unencrypted space, as opposed to trying to crack the encryption. I guess that's a little bit roundabout, because you were speaking about police powers generally, but as to whether or not that need has been specifically demonstrated, again, I stand by the idea that intelligence agencies have a bigger tool kit than they ever had before. I think the Internet has vastly expanded their capability to monitor what people are doing, and I think the capabilities of targets have been enhanced as well, but not at the same rate.
I think our intelligence agencies are more powerful than they were 10 to 30 years ago, and I don't necessarily know that the need has advanced beyond that.