If &quot;secure&quot; communication schemes are made insecure, other methods will be used.  For example, while it may be inconvenient for two people to drive halfway across town and meet face-to-face in a dark warehouse, they&#x27;d have no problem doing that if it was the only way to ensure secret communications.  Especially when they&#x27;re planning events that might take weeks or months to unfold, what&#x27;s an extra 30 minutes of driving?<p>If you invest billions in surveillance, you will only achieve two things: having spent billions, and making sure that criminals communicate in some other way.  You will have stopped no crimes, except the people who are stupid enough that they would have been caught anyway.