60 Minutes Season 53 Episode 23 2/14/2021: SolarWinds, Bill Gates 3.0, Simone Biles

Investigators believe Russia is behind a massive cyber hack that hit several federal agencies, including the Treasury, Commerce, and Justice Departments.

"The amount of change, new ideas. It's way greater than the pandemic. And it needs a level of cooperation that would be unprecedented," Gates tells Anderson Cooper.

"I just sat there and I was like, 'I really don't know how I'm going to do this,'" Biles says. Sharyn Alfonsi speaks with the Olympian.