Boris Johnson: ‘Virtually certain’ Iran is behind Saudi Arabia attack

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In his first U.S. network television interview, United Kingdom Prime Minister Boris Johnson tells Lester Holt why he thinks Iran is behind the recent attacks on major oil sites in Saudi Arabia. Watch the interview tonight on “NBC Nightly News With Lester Holt” at 6:30 p.m. ET / 5:30 p.m. CT (or check your NBC station).