Trump, Musk and Zuckerberg have declared war on facts and truth. The pushback must start now | Emily Bell

There is a narrow window. Public media and fair reporting must be supported: the rules must be upheld

In early 2017, Mark Zuckerberg was on what might be termed an apology tour" of the United States. In the tumultuous few months since Donald Trump won his first presidential victory, the young chief executive of Facebook was reeling from his company's part in serving US voters Russian disinformation, and widespread accusations that the social media platform had disseminated a vast spray of fake news". Fighting a rearguard action, Facebook announced changes to its algorithms, and a major initiative to include third-party factcheckers" as part of the content moderation efforts.

Touring the country, Zuckerberg and his wife, Priscilla, stopped off in Selma, Alabama. They posed for a casual photo outside the offices of the iconic local paper, the Selma Times-Journal. Zuckerberg posted a heartfelt thank you" to journalists who work tirelessly and sometimes put their lives in danger to surface the truth. I don't always agree with everything you say, but that's how democracy is supposed to work." The choice of the Times-Journal was freighted with significance. A paper that had campaigned against the Ku Klux Klan in the 1920s and reported on the Montgomery to Selma civil rights marches in the 1960s was a pointed reminder of how the local press could provide a bulwark against fascism.