Looks like it's going to bite them in the ass.

"…once information is collected by the NSA for "foreign intelligence" purposes under section 702 of the FISA Amendments Act, that information can be searched by the FBI for regular criminal investigations without any need for a warrant or prior court oversight."

https:// www.eff.org/deeplinks/2016/04/secret-court-takes-another-bite-out-fourth-amendment

I know we've already covered this but it's the most simplified explanation I've read thus far - perfect for explaining to normies.