>> you think we are repeating what we did in the late '80s, early '90s with methamphetamine now? >> we certainly are. we punish meth more harshly than any other drug besides crack. there's virtually no evidence for this dental decay that we see, these pictures that people show. >> virtually no evidence. when we think about methamphetamine, think about adderol, same drug, nobody's talking about -- >> it's not the same drug. >> it's the exact same drug. the only difference is that methamphetamine has a methol group attached do it, we did a study in which we tested the effects of a drug like adderol or methamphetamine, they produced identical effects. they're almost identical chemically. we have these wildly different narratives surrounding these drugs.