近年来，滥用阿片类药物特别是芬太尼，已经取代枪支暴力和车祸，成为美国意外死亡的主要原因。然而，美国并没有就芬太尼加强监管，而是指责中国。

The United States is the only country in the world that has been battling a grave opioid epidemic, and it is bent on blaming China. The abuse of opioids, particularly fentanyl, has overtaken gun ...