In article ,
Jim Yanik wrote:

http://en.wikipedia.org/wiki/Public_Law_62-5

My guess would probably be some sort of a nod to 1 S8 18 that says
Congress has the right to make all laws necessary and proper to carry
out their duties under constitution. ALthough I would suppose that the
Courts would say the specific trumps the nebulous. But I could be wrong.
Interestingly, I don't see any references to any court cases on these
subjects. Everybody seems to be studiously ignoring them.