The criminals always know how to obfuscate their internet usage, telecommunications and text based messages and much of the encription that is available is strong enough to deter government access because it could take years to break it. The FBI utilized NSA computers for 3 years trying to break into an encrypted hard drive and were unable to do it. The government is not after the biggest bad guys, in fact those are who they do business with. The government wants to catch the low hanging fruit, the common citizen who commits minor infractions such as piracy or sharing of illegal CAD files.

But, mark my words, the next American revolution will be fought with a keyboard, because when it is time all the Hackers will be able to take control of the Drones, Crash the market, Turn off the power and make the fatcats starving in big cities beg the bread basket for provisions.