Chinese "money brokers," working for Latin American drug gangs, are quickly displacing Mexican and Colombian money launders. With burner phones and Chinese banking apps, the gangs are "moving vast sums quickly and quietly." As a result, they are taking over the movement of dirty cash, especially in Mexico. For instance, one Chinese ring, based in Guadalajara, worked for the Sinaloa Cartel and other drug gangs. Criminals from China, in the words of federal prosecutors, "have come to dominate international money laundering markets." "I look at this hemisphere as the front line of competition," said Admiral Craig Faller, the commander of...