There's a lot more involved with counterfeiting a modern U.S. Federal Reserve Note than just firing up a "printing press", dude. Note that government-level ent

There's a lot more involved with counterfeiting a modern U.S. Federal Reserve Note than just firing up a "printing press", dude. Note that government-level entities which happen to be enemies of the United States already have a strong incentive to do this, and they've pretty much universally failed. The press is the easy part. The special watermarked paper, the color-shifting ink, the security threads... all of that requires a functioning industrial infrastructure, dispersed over a large geographic region. And that's exactly what would not be available. If the U.S. goes down, the whole world goes down with it.