Discover USDT, the popular stablecoin also known as Tether or U-coin. Learn about its relation to the US dollar, whether it's a digital currency or legal tender, and its price fluctuations. Explore why USDT is sought-after by the Chinese community and its role in overseas investments. Understand the legality of USDT transactions and where to buy and sell this cryptocurrency. Learn about the risks, including money laundering concerns, associated with USDT.