las vegas
A supermassive black hole that was moved from the center of the galaxy to right smack dab in the middle of the desert in nevada.  It's gravitational force is so strong that nothng, not even your paycheck can escape its pull.  As more of your money falls into the event horizon, vegas's mass grows ever larger.
Money caught, withen the gravitional pull of las vegas, gives off x-rays, detectable as debt here on earth, as it spirals down to oblivion.