Titled:   Two Tier Currency Rumor

As the Federal Government works to find a way out of impending fiscal doom, rumors are starting to spread of a two tier currency system.

George at UrbanSurvival is trying to track down sources:

I am trying to find a source of a disturbing rumor in an email or two yesterday about so-called "red backs" - which it was speculated might be the beginning of a two-tier currency system.  The buzz is that a "normal" bill, used inside America's borders would continue to be the "green backs" and they would be heavily devalued in the event of a monetary crisis, and that "red backs" would be used outside of the US.  The "red backs" would not be devalued.  The idea is that if your greenbacks only bought, say 25-cents on the dollar outside America, we would, as a nation, import less.  (Might cause the immigration problem to reverse, too.)  At the same time, while countries outside the US would retain their purchasing power, then our exports would soar, at least so far as we make things any more.

As a way to have your cake and eat it, the idea looks promising to the Fed. As far as making it very expensive to travel outside the US, this would seem to be not quite so attractive.

Quite how it would work with international transfers and purchases using digital dollars I'm not sure. Maybe they plan to have people convert their dollars at the borders...

Probability of truth: <5%

Update:  Subject is also found here, and here