According to Foresight News, US Senators Ron Wyden and Cynthia Lummis have written a letter to US Attorney General Merrick Garland, expressing their 'serious concerns' about the Justice Department's expanded definition of money transfers. This comes after the Justice Department accused two cryptocurrency mixers, Samourai Wallet and Tornado Cash, of operating unlicensed money transfer businesses.

The senators' concerns stem from the Justice Department's decision to broaden the definition of money transfers, which could potentially impact the operations of cryptocurrency businesses. The letter to the Attorney General highlights the potential implications of this decision on the cryptocurrency industry and seeks clarification on the matter.

Previously, the Justice Department had accused Samourai Wallet and Tornado Cash of operating without the necessary permissions. These accusations have raised questions about the regulatory landscape for cryptocurrency businesses and the potential for increased scrutiny from authorities. The senators' letter is a clear indication of the growing concerns among lawmakers about the regulatory approach towards the cryptocurrency industry.