#juan, when you go to the gas station to fill the tank of your car (pardon me if you are a strict walker or bicycle rider) do you ask if the gas was refined from the oil sands, and would you refuse if it was revealed to you that it was?
If the tailings are useless (with current technology) and dangerous, they should be safely curtailed from spilling and polluting. Nobody disputes that. Nobody wants to breath bad air, drink bad water or leave a polluted environment to our kids and grand-kids, only in the deranged minds of liberals.
Producing just about anything is a smelly mess. If you want only things that smell nice, you would never have another piece of meat in your kitchen (private or on this forum). You would never have a piece of clothing made of wool. Or cotton. Or synthetics. You would never have a shoe to wear.
Shut down something you don't like? How about shutting down something I don't like. Wouldn't you be the first one to demand to shut me up if I dared to voice something you don't like?
You would be well advised to weigh the problems caused against the problems solved.