 Musk's social media site, which he's rebranded X, must comply with the EU's Digital Services Act, a set of rules to make social media safer and more transparent. Regulators in Brussels have accused Musk of letting disinformation and illegal hate speech run rampant on the platform. In response, Musk has been defiant. He wrote on X that the European Commission wanted to force the site to censor speech to avoid fines. He vowed to fight the EU charge. If upheld, the EU can fine Musk up to 6% of X's global annual revenue.