75 years after Hiroshima, should U.S. president have authority to launch nuclear attack?

On August 6, 1945, the United States dropped the first atomic weapon on Hiroshima, Japan. Seventy-five years later, the NewsHour revisits how the president became the sole authority on when nuclear weapons are used. Nick Schifrin reports and talks to former Secretary of Defense William Perry, co-author of "The Button: The New Nuclear Arms Race and Presidential Power from Truman to Trump."

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Видео 75 years after Hiroshima, should U.S. president have authority to launch nuclear attack? канала PBS NewsHour