COVID Fears Spark Market Sell-Off, President Biden vs. Facebook on Vaccine Disinformation, Zoom's Biggest-Ever Acquisition, Ackman's SPAC Scraps Universal Music Deal, and IPO Watch: Robinhood Seeks $35B Valuation

Squawk on the Street - COVID Fears Spark Market Sell-Off, President Biden vs. Facebook on Vaccine Disinformation, Zoom's Biggest-Ever Acquisition, Ackman's SPAC Scraps Universal Music Deal, and IPO Watch: Robinhood Seeks $35B Valuation