A federal judge has ruled that a civil lawsuit against Saudi Arabia, brought by victims of the 9/11 attacks, can proceed to trial. This decision is a significant victory for the families of those killed, who have sought accountability for over two decades. The lawsuit alleges that Saudi officials provided assistance to the al-Qaida terrorists who carried out the attacks. While Saudi Arabia denies these claims and may appeal, legal experts suggest they might seek a settlement to avoid trial scrutiny. Plaintiffs' evidence has challenged previous conclusions about the extent of Saudi involvement. Specifically, evidence suggests two Saudi officials in Southern California acted knowingly, not unwittingly, in aiding the first hijackers. This evidence, some of which was obtained from the British government, includes documents and videos that cast doubt on the FBI's initial findings. The litigation faced obstacles, including a presidential veto that was overridden by Congress and attempts to block the release of classified documents. The judge found a high probability of the Saudi officials' roles in the hijackers' plans, citing evidence such as a diagram of an airplane found in one official's notebook. Despite limited discovery and opposition, the families have presented a compelling case against Saudi Arabia's alleged support for the 9/11 hijackers.