China pushed back on U.S. tariffs linked to fentanyl, saying the opioid crisis is a domestic issue for the United States.⁣ ⁣ Beijing accused Washington of undermining cooperation by imposing “unwarranted” tariffs and harming bilateral efforts on drug control.⁣ ⁣ “The responsibility lies with the U.S. itself,” said China’s foreign ministry.⁣ ⁣ #mofa #china #usa #opioidepidemic #crisis #tariffs⁣