Elon Musk is performing a great public service by releasing the Twitter Files, which show how the social media company he recently purchased suppressed news about the Biden family’s foreign dealings. While the company’s actions, which occurred weeks before the 2020 election, raise knotty questions about free speech, they are a distraction. The more urgent issue is the conduct of our own government, specifically the Federal Bureau of Investigation, which created the landscape where censorship and disinformation could thrive and possibly change the outcome of the presidential contest. Here is a brief chronology which focuses on the bureau’s key role...