The ranking member of the U.S. Senate Committee on Banking, Housing and Urban Affairs, Senator Elizabeth Warren, sent a letter to the U.S. Department of the Treasury and the U.S. Department of Justice urging investigations into how illicit actors may be exploiting decentralized finance services and decentralized cryptocurrency exchanges, including PancakeSwap. The letter frames the request as Congress considers crypto market structure legislation and raises concerns about whether enforcement decisions are being influenced by politics. The letter argues that decentralized exchange platforms such as PancakeSwap and Uniswap process hundreds of millions of dollars in daily transactions while not requiring user registration or identification, allowing users to bypass know your customer requirements that apply to other financial institutions. It highlights risks from limited anti-money laundering controls, citing an example in which North Korean hackers allegedly used PancakeSwap to launder an estimated USD 263 million of USD 1.46 billion stolen in what was described as the largest crypto theft of all time, and describes decentralized exchanges as potential “off ramps” for criminals to convert illicit proceeds into real-world spending with minimal verification. The letter requests answers to Warren’s questions by January 12, 2025.