Updated

Newly surfaced videos of Omar al-Bayoumi, a figure central to a long-running 9/11 lawsuit, reveal previously undisclosed links to extremists and the Saudi state. The footage and other evidence reportedly withheld by the FBI undermine al-Bayoumi's 25 years of denials regarding his role. The revelations could have significant implications for ongoing litigation seeking to establish Saudi government responsibility for the September 11 attacks.