How a Wall Street Journal Reporter Did a Story About Jack Teixeira and Highly Classified Documents

From a Wall Street Journal story headlined “Reporter’s Journal”:

Prosecutors last week charged Massachusetts Air National Guardsman Jack Teixeira in connection with a leak of highly classified government documents related to the war in Ukraine, intercepted communications about U.S. allies and other topics. The bulk of the more than 60 documents that have been made public appear to originate from the CIA’s Operations Center and the Pentagon’s Joint Chiefs of Staff. Teixera’s lawyer declined to comment. We spoke with WSJ national security and legal reporter Byron Tau, who has been following these developments.

Q: What influence could the leak have?