https://www.quora.com/Does-China-ePacket-hurt-American-busin...
"COMBATTING THE OPIOID CRISIS: EXPLOITING VULNERABILITIES IN INTERNATIONAL MAIL" https://www.hsgac.senate.gov/imo/media/doc/Combatting%20the%...
US Senate Staff Report: "Fentanyl Flows from China" https://www.uscc.gov/sites/default/files/Research/Fentanyl%2...