On Wednesday, the CEOs of Facebook, Google and Twitter appeared (virtually) before a congressional committee to answer hours of pointed questions about how their platforms handle misinformation.
원문출처 : https://www.cnn.com/2021/03/25/tech/jack-dorsey-clock-blockchain/index.html
원문출처 : https://www.cnn.com/2021/03/25/tech/jack-dorsey-clock-blockchain/index.html