Biden optimistic about progress in Pentagon leak investigation.

President Joe Biden said federal investigators are "getting close" to finding the origin of the Pentagon document leak, but did not provide further details. The Defense Department has been unable to make much progress on the leak's origin, and the Justice Department declined to comment. The Washington Post reported that the original leaker is a young man who worked on a military base and posted the documents to a Discord group. Biden allayed worries about a massive breach that has exposed worldwide U.S. intelligence secrets and angered allies.