Chinese and US officials meet in effort to stop flow of deadly fentanyl

American and Chinese officials met on Tuesday to discuss joint efforts to stem the flow of fentanyl into the US, a sign of cooperation as the two global powers try to manage their contentious ties. The two-day meeting was the first for a new counternarcotics working group. One focus of the talks was fentanyl, the synthetic opioid that is ravaging the US, and in particular ingredients for the drug that are made in China. The Chinese president, Xi Jinping, agreed to restart cooperation in a handful of areas, including drug trafficking, when he and Joe Biden met outside San Francisco…