There's one person I know arrested for Uranium One. George Webb.
If more have been arrested great.
I think your right Muller was moving heu/leu or sometihing maybe for the DOE/ROSATOM?
Here's some Juice on Highly Enriched Mueller…
https://garycgibsonblog.wordpress.com/2019/02/14/inquisitor-mueller-was-heu-mule-to-moscow-in-2009/