Let me tll you somthting: Western Union is still in business because it's the favored way of sending money over the border to multiple destinations. A lot of wealth leaves the country that way, and PayPal and other online payment services. You want to see dem heads explode? Try regulating any of it more than it is now. I recall a few years back someone proposed some more transparency with Western Union to track tax dodgers, drug dealers, and terrorists, and the usual suspects were right there chanting about how unfair it  was to impact enterprising people like that.