Top US officials shared Yemen strike plans with journalist in group chat.
The White House has confirmed that a journalist was inadvertently added to an unsecure group chat in which US national security officials planned a military strike in Yemen.
He said he saw classified military plans for US strikes on Houthi rebels, including precise details of weapons packages, targets and timing, two hours before the first bombs struck.
Goldberg said he was added to the message chain, apparently by accident, after receiving a connection request from someone who appeared to be White House National Security Adviser Michael Waltz.
Watch: President Trump says he knows 'nothing' about journalist in Houthi strike group chat.
Live updates: Yemen strike plans shared with journalist Signal is used by journalists and Washington officials because of the secure nature of its communications, the ability to create aliases, and to send disappearing messages.
A number of accounts that appeared to belong to cabinet members and national security officials were included in the 18-person chat, Goldberg reported. »