China firms happy to sell killer opioid "weapon" to anyone in U.S.

Experts say carfentanil, one of strongest opioids in circulation, helping fuel rash of overdose deaths, and it's shockingly easy to get

From: http://www.cbsnews.com/news/china-sell-opioid-carfentanil-fentanyl-chemical-weapon-unrestricted-chinese/