I made it clear that the CIA cannot legally spy domestically, do you have proof on the contrary? I doubt it.
The National Security Agency (NSA) CAN legally spy domestically. I didn't say that was their only purpose, I said that they are the only intelligence agency that you really have to worry about in the USA. You can ramble on about the FBI all you want, but the NSA kicks their ass up and down the street all day when it comes to gathering intelligence. They have different missions, so its like comparing apples to oranges.