Critics say the policies of Amazon, Google, and Facebook from the early days of the pandemic to restrict the sale of medical-grade masks are now outdated (Andrew Jacobs/New York Times)
Tech event calendar 2021: Upcoming US shows, conferences, and IT expos
Twitter's Super Follows represent a surge of interest in tools that let individuals create real economic value for themselves on social networks (Casey Newton/Platformer)
Apple's indoor maps format is now a standard; here's why that matters
Twitter reveals Super Follow, a feature that will let users get exclusive content, deals, and community access to creators for $4.99/month, and a groups feature (Michael Potuck/9to5Mac)
Damage from explosion, which officials have linked to some 2,750 tonnes of ammonium nitrate stored at the port, may be worth up to $15bn.
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