"The United States has the world's largest financial system. On any given day, U.S. financial institutions process trillions of dollars of transactions originating both domestically and from all across the globe. The stability and transparency of the U.S. financial system make it an attractive destination for trade and investment, but also make the United States an attractive target for illicit finance activity. This activity can include fundraising by terrorist groups and their supporters and facilitators; financial transactions that facilitate weapons of mass destruction (WMD) proliferators; and money laundering by drug-trafficking organizations, organized crime groups, and perpetrators of fraud. To address the risk of these activities, the U.S. government has developed a robust anti-money laundering and countering the financing of terrorism (AML/ CFT) framework built upon sound laws and regulations, effective implementation, and balanced enforcement."
U.S. Department of the Treasury: https://home.treasury.gov/