Biden is ‘deeply concerned’ about the release of secret documents on Israel’s possible attack plans The Associated PressInitial investigation into US intelligence leak on Israeli attack planning focusing on who had access to documents CNNBiden ‘concerned’ about release of files on Israel’s plans to strike Iran Al Jazeera EnglishDOD, FBI investigating suspected major intelligence leak ABC NewsU.S. Investigates Intelligence Leak About Israel’s Plans for Attacking Iran The Wall Street Journal