It is mentioned in the first section by Lois. That's one of the things that launches the investigation.
this is discussed with the new source "Dave' in the next section.
It is also discussed by Perry as the rest try to find articles about Spin Mini - Mart.
But, I can make a bigger deal out of it in the first sectionn if you think it would help.
As far as what Cp3 said (I think that's the name, forgive me if I'm wrong), that's on the right track, and they will figure that out eventually.