The former chief executive of Binance, the world's largest cryptocurrency exchange, could face years in prison when he is sentenced on Tuesday after his guilty plea to violating U.S. money-laundering laws. U.S. prosecutors have told District Judge Richard Jones in Seattle that they want Changpeng Zhao, who goes by "CZ," to serve twice the maximum 18 months recommended under federal guidelines. Prosecutors said a tough sentence for the man once considered the most powerful person in the crypto industry would send a message that "the right choice, every time, is to comply with the law."