The content originally appeared on: CNN (CNN)A new government report out Tuesday details how opioid trafficking in the United States has changed in recent years, with Mexico now a 'dominant source' of the country's fentanyl supply and synthetic opioids rapidly saturating drug markets. In its report, the federal Commission on Combating Synthetic Opioid Trafficking - a bipartisan group of US lawmakers, experts and officials from federal departments and agencies - warns that if the US does nothing to change its […]