Biden ‘concerned’ about release of files on Israel’s plans to strike Iran Al Jazeera EnglishInitial investigation into US intelligence leak on Israeli attack planning focusing on who had access to documents CNNBiden is ‘deeply concerned’ about the release of secret documents on Israel’s possible attack plans The Associated PressU.S. Investigates Intelligence Leak About Israel’s Plans for Attacking Iran The Wall Street JournalPro-Iranian account leaks alleged U.S. intel on Israel’s attack plans Axios