I don't think it is in anyway limited: https://www.fbi.gov/news/testimony/facilitating-an-enhanced-information-sharing-network https://www.fbi.gov/news/testimo

I don't think it is in anyway limited: https://www.fbi.gov/news/testimony/facilitating-an-enhanced-information-sharing-network https://www.fbi.gov/news/testimony/facilitating-an-enhanced-... As to the point about selectors, if a selector has an even remotely domestic terrorism related component, and is authorized by the FISA court, the FBI can and does see that information. Edit: added qualifier about terrorism