Let's look at this sensibly.... Either the FBI logs every packet going across the internet or it targets individuals. The first case is ridiculous...... They couldn't do it and then they couldn't make any sense of it. So they have target the individual. In order to do that they determine the ISP of the individual and "wiretap" it. Let's say the individual is smart and builds an encrypted tunnel. If the FBI wants them badly enough they can probably crack the encryption in a few days. But lets say the individual has one single ounce of common sense. They pick up their laptop, (or even their pocket PC), and drive off down the street to the house of another that has an unsecured Wireless Access Point, preferably from a different ISP. He sets up shop across the street, creates a new encrypted tunnel to his "brothers in arms" and bingo..... untracked and untrackable, (unless you follow him everywhere and sniff everything he sends which he will most certainly notice).

It hardly takes rocket science to work this out. With a bit more thought I'm sure I could come up with a series of other ways to make it impossible for the FBI to decide what I was doing. Of course, it hardly took rocket science for the FBI to come up with a plan that is so full of holes either.....