Evidently someone on a computer with an IP address from the US Congress has been making, shall we say, "creative" edits in Wikipedia recently. This has led to the site imposing a 10-day ban on postings from House of Representative computers.
Other changes included:
an alteration to the page on the assassination of John F Kennedy, which was changed to say that Lee Harvey Oswald was acting "on behalf of the regime of Fidel Castro".Source:An entry on the moon landing conspiracy theories was changed to say they were "promoted by the Cuban government".
BBC: "Wikipedia blocks 'disruptive' page edits from US Congress"