Twitter Inc. made headlines this week when it suspended the account of Aaron Greenspan, a well-known critic of Tesla Inc. and its CEO Elon Musk. See Next: This Startup Invented Programmable, Drinkable Plastic That Dissolves In Water In 60 Hours Greenspan, founder of PlainSite, found his online presence abruptly disrupted on June 13. The suspension of his account, which had more than 24,000 followers, raises questions about freedom of speech and online censorship. Ironically, Twitter claims defen
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