My main fear is not price explosion but what the fed and the cartel will do if they lose price control completely. I wouldn't be surprised to see them play the national security card if they have to shut things down, then implement ways to get the gold/silver now in our hands into theirs, national the mines, put in excess profit taxes and the like. The president already has the power to do much of that.
This won't effect ECU in any way, imo - a Canadian company with its resources in a Mexican mine.