This is all a joke guys. There is no way that the FBI would track every single user that SE'd an Xbox/s. MS would have to pay way more money than they lost on these so called "investigations". Don't think that the FBI and MS are working together. MS isn't part of the Government. Also, why would the FBI waste their time on this? The FBI deals with bigger problems. Like Terrorism, catching fugitives, billion dollar scams, etc. Also, it would take the FBI a long time to catch everyone who did this. Most likely, most of the people who SE'd the consoles, did more than one.
On another topic, almost every company gets stolen from. What makes MS so different? It's their fault for allowing an advanced exchange and for not taking the precautionary measures to make sure that they would get their money if they didn't get a console back. The same thing happened last year. There was the same method and they eventually stopped the adv. exc. It's their fault for allowing it again.
Tl;dr
So basically, there is nothing to worry about. This is all a joke just like Trojan and Brandon's LR "Exploit". Take a chill pill and shut the fuck up already.