The crypto-surge, Bernie Madoff's dark legacy, and a question on Russia slowing Twitter

Vaccine hesitancy has basically been a function of three group—and that is young people, people of color, and then hardcore Republicans. And we made a lot of progress on the first two; it's the third that is standing hard.

These [COVID-19] vaccines are arguably, if you actually believe in data, arguably the most successful vaccines or the safest vaccines in the history of vaccines.