Having surpassed gun homicides for the first time in 2015, the epidemic of heroin and opioid related deaths in the US continues to grow. Amid the dismal failure of the ‘war on drugs’, it seems US lawmakers are finally waking up to reality, and are pressing the nation’s drug czar for more data on the dangerous synthetic opioid fentanyl, including how it is trafficked and how many people it has killed, in the latest effort to thwart a spiraling drug crisis.