U.S. President Donald Trump's national security adviser says he's taking "full responsibility" for an "embarrassing" situation created when a prominent magazine journalist was added to a group chat in which pending strike plans against Houthi targets were being discussed by senior U.S. officials.
Liberal Leader Mark Carney says the leak by top U.S. national security officials of plans for military strikes in Yemen — and the shifting security priorities of the Trump administration — mean "we have to look out for ourselves."