Facebook’s David Marcus, who is in charge of Diem, formerly Libra, believes that the Chinese government cracking down on  mining is “a great development” for BTC. . https://t.co/OGkJ2k8z5G Safe your Digital Assets with NanoS &gt; … https://t.co/FKNcg29bFE https://t.co/UNjfWqSIRY