Due the nature of illegality, I don't know, might never know, if it is 2% or not, but given the drug war situation in Mexico, the percentage must be significant enough to worry a lot of people.

The key here is that we don't live on potatos, we could live on other things just fine, why should we be given, be handed, (not buying, that is a bad analogy) a bag of problematical potatoes?,