It seems like a pattern to locate a paranoid schizophrenic pasty, or someone with severe mental issues, and then try to encourage them to commit a crime.
Which is ironic, considering spreading of materials related to terrorism is considered terrorism in and of itself... yet, it's okay if the FBI does it.
Most of those people are too "retarded" to even do anything like that on their own. In that article, you can see the bomb materials were provided to the informant, who then gave it to that man, who didn't even want to do anything to begin with.
He was released early on the condition that he wasn't allowed to sue the government for what they did to him, and if he tries to speak out against them for that, it's back to jail.
They've been caught withholding evidence, refusing to let convicted individuals provide any kind of evidence in their defense, etc. This is a lot like what China does to entrap people into speaking against the government, then arrest them. For example, The Hundred Flowers Campaign.