I mean, in the end it's impossible to completely prevent any scams from occurring. Even if we used a tax based system people could still lie, and we will wouldn

I mean, in the end it's impossible to completely prevent any scams from occurring. Even if we used a tax based system people could still lie, and we will wouldn't be able to see if they're telling the truth. It's not feasible to constantly check up on everyone. They did verify that the RINs were being produced properly, which is what led to the guy being caught. So I'm not sure what your argument is here. If you understand cap and trade systems, then you know that they aren't inherently gameable (which you just admitted). So are you saying that you think the EPA needs more funding?