In one of his most shameful moves yet, billionaire Elon Musk recently threatened to sue the nonprofit Center for Countering Digital Hate. Their offense? Publish research about the proliferation of hate speech on Twitter, the social media platform owned by Musk. Nonprofits should be free to do their work within the constraints of the law without being attacked or threatened by billionaires. Sign the petition telling Elon Musk to leave nonprofits alone.