I think for some of the spying they needed to get a warrant from a judge but since it was a secret it was like a sort of secret Court. Those warrants were basically always rubber stamps and the judge said yes something like 99% of the time. I think he's saying that like from now on they will only do it 95% of the time. Maybe.

At least that's my understanding. Too lazy to look it up so I'll wait for somebody to correct me

Basically, the FISA court (Foreign Intelligence Surveillance Court) has a classified ruling that spying on American citizens by the NSA was totally legit because...reasons. That you are not allowed to know. That where (and still are) probably not constitutional, but they're going to do it anyway.

Don't think too hard about the fact that your government is spying on you, that nobody has seen the inside of a jail after mass theft of American assets in 2008, that we are engaged is massive spending to foreign governments while US citizens struggle to buy food and gas, etc.

Instead, be very afraid of Jan 6/BLM/Trump/Antifa/whatever. Those are the issues that really matter. /s