New Twitter owner Elon Musk is vowing to reform the social media platform. “Free speech is the bedrock of a functioning democracy, and Twitter is the digital town square where matters vital to the future of humanity are debated,” Musk said in a statement after his $44 billion bid to buy the company was accepted.

Many, many conservatives hope Musk succeeds. But as much as Twitter needs freer speech, it also needs to tell the world precisely what it has been doing for the last few years. That is why it should conduct a full and comprehensive audit of all the instances in which it has suspended users, banned users, reduced the visibility of tweets, and in other ways censored or suppressed information on its platform for political reasons.