Former US President Donald Trump had many Twitter hits. But he's been kicked off since the 2021 Capitol insurrection over fears Trump's tweets would stoke further violence.

Social media companies play an outsize role in American politics. That's why the Jan. 6 committee has subpoenaed most of them to probe their role in the 2020 election Ian Bremmer explains on GZERO World.

But the influence of Facebook, Twitter, and others on our lives extends well beyond that. And it's not just Nicki Minaj's cousin's friend having a bad vaxx trip — the failures of social media companies can have life-or-death consequences.