US Defense Secretary James Mattis and Secretary of State Rex Tillerson testify before the Senate Foreign Relations Committee on Monday. REUTERS/Jonathan Ernst
Business Insider: Mattis explains how the US would respond if North Korea launched a nuclear missile at America
* Defense Secretary James Mattis laid out the US's response to a North Korean nuclear missile attack.
* The US would try to shoot it down, and it has rehearsed its offensive response many times.
* Both Mattis and Secretary of State Rex Tillerson defended President Donald Trump's capability to launch a nuclear first strike without consulting Congress.
Defense Secretary James Mattis on Monday told the Senate Foreign Relations Committee how the US would respond to a North Korean nuclear missile attack.
"What happens if somebody knocks on the door of the Oval Office and says, 'Mr. President, they've launched'?" Sen. Jim Risch said.
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Update: Mattis: White House Could Order Nuclear Strike if North Korean Attack ‘Imminent’ (Sputnik)
WNU Editor: Bottom line .... if a North Korean nuclear attack was imminent .... the U.S. would respond first.