US Government Struggles to Contain Classified Document Leaks.

The Biden administration is dealing with leaked classified intelligence documents that contain details from daily updates provided to senior leaders at the Pentagon about operations in Ukraine, as well as other intelligence updates. The administration is not yet sure how extensive the document leak is, and still doesn't know who is behind it. The Justice Department has opened a criminal investigation. The Pentagon is leading an interagency effort to look at the impact of the leak on U.S. national security and on the United States' allies.