Mueller investigated Stellar Wind "pizza" cases
"During the Bush Administration, the Stellar Wind cases were referred to by FBI agents as "pizza cases" because many seemingly suspicious cases turned out to be food takeout orders. According to then-FBI Director Robert Mueller, approximately 99% of the cases led nowhere, but "it's that other 1% that we've got to be concerned about".[2]"
—-
So about that 1% that he (Mueller) was concerned about…
How does he (Mueller) get that evidence entered into a court of law -Flynn
https://en.wikipedia.org/wiki/Stellar_Wind
Those that know cannot sleep.