about it is because so many people are dying from heroin or opoid overdoses. methamphetamines have been here. it has been having a resurgence of late because gone are the days of the walter white laboratories of the early 2000s. law enforcement pretty much has gotten rid or combatted most of those laboratories. and so to fill the void, mexican cartels have been sending methamphetamines straight up through texas into oklahoma where it intersects with a major highway that heads east and west. and this meth is deadlier than it has ever been. it is a lot cheaper and a lot stronger. and it has been having a devastating impact on states throughout this country including oklahoma which is where this episode is set. >> and in fact you were along with law enforcement while in oklahoma. and you even got a chance to talk to users, dealers.