evidence: The US Department of Justice is making a novel legal argument to keep a recording of an interview with Joe Biden from becoming public. In a filing late last week, the bureau cited the risk of AI-generated deepfakes as one of the reasons it refuses to release audio of the president’s interview with special counsel Robert Hur. The conversation about Biden’s handling of classified documents is a source of heated political contention, with Republicans pushing for release of the recordings and the White House moving to block them. [...] Biden’s interview with Hur reignited a longstanding conservative campaign of questioning Biden’s mental faculties and drawing attention to his age, which critics claim make him unfit to be president. While Hur’s report into classified documents found at Biden’s private residence did not result in charges against him, the special counsel’s description of him as an "elderly man with poor memory" became ammunition for Republicans and prompted Biden to defend his mental fitness. Although transcripts of Hur’s interview with Biden are public, conservative groups and House Republicans have taken legal action, filed Freedom of Information Act requests and demanded the release of recorded audio from the conversation as he campaigns against Donald Trump. Biden has asserted executive privilege to prevent the release of the audio, while the latest justice department filing pushes back against many of the conservative claims about the recording.