It's about connecting the money, I think.
The sale allows them to trace certain things. Buyers/unknowns/sellers/unknonws.
HOT DAMN! ITS THE SOGGY BOTTOM BOYS!
Section 3 - Treason. Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
best I could do