Chinese Communist officials and state media responded angrily on Thursday to U.S. sanctions against Chinese firms for their alleged role in the fentanyl drug crisis. President Joe Biden imposed the sanctions against four Chinese pillmakers by executive order on Wednesday, to “help disrupt the global supply chain and the financial networks that enable synthetic opioids and precursor chemicals to reach the United States,” as Secretary of State Antony Blinken put it. Also subjected to Treasury Department action was an individual named Chuen Fat Yip, described as “one of the largest, if not the largest, producers of anabolic steroids in the...