2. Yes it can be done underground, but so can heroin sales.
Again, I refer you to the relative civilian body count of the Iraq War vs. 9/11. I will not let this point go until your ego finally softens to the point that you can accept it.
"To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by rights to hand down to them."~ Theodore Roosevelt (Message to Congress, Dec. 3, 1907)