Among the revelations: That the platform Discord provided information that helped lead the FBI to guardsman Jack Teixeira, and that Teixeira used his government computer to search for the word "leak" on the day last week when news media reports revealed that classified documents had been improperly disclosed.

President Joe Biden said the government was working to determine "the validity" of the leaked documents. In the meantime, he said in a White House statement, "I have directed our military and intelligence community to take steps to further secure and limit distribution of sensitive information, and our national security team is closely coordinating with our partners and allies."