https://medium.com/bloomberg/youtube-managers-ignored-warnings-let-toxic-videos-run-rampant-bb609cb75dbc > BloombergBlockedUnblockFollowFollowingApr 2Susan Wojcicki speaks at SXSW in 2018. Photo: David Paul Morris/BloombergBy Mark Bergen > A year ago, Susan Wojcicki was on stage to defend YouTube. Her company, hammered for months for fueling falsehoods online, was reeling from another…