6.5K views · 144 reactions | After a bumpy start, a US regulator now says it's watching events at Twitter with "deep concern" after two top executives reportedly left the organisation. Tama Leaver, a professor of internet studies at Curtin University, says Elon Musk’s decisions so far are “a real worry about the future of the platform altogether”. | ABC News | Facebook

8.5K views · 37 reactions | TOP EXECUTIVES GRILLED: Facebook COO Sheryl Sandberg and Twitter CEO Jack Dorsey faced a grilling from Senators about foreign influence on social media, especially the targeting of U.S. elections – with both saying they are shutting down phony accounts by the millions and Google’s top executive skipping the hearing. David Muir reports. https://abcn.ws/2oGZKbQ | ABC World News Tonight with David Muir | Facebook