The renowned linguist and thinker offers a warning about the threat of nuclear war but maintains there's still reason to be positive.
This administration, like its post-Cold War predecessors, has one way out of the crisis: real negotiations.
Hawaii's mistaken missile alert has raised questions about whether any state should be solely responsible for notifying the public of such an event.
The world now stands "at the very limit," said the leader of the Catholic Church. "I am really afraid of this.”
The process for launching a nuclear strike involves the use of a "football," which is carried by military officers everywhere the president goes.
“The entire area of the U.S. mainland is within our nuclear strike range. ... The United States can never start a war against me and our country,” the North Korean leader declares.
Setsuko Thurlow, who was 13 when a U.S. atomic bomb devastated Hiroshima, heads a group that is urging 50 countries to ratify an international treaty to ban nuclear weapons.
Daniel Ellsberg reveals that the Pentagon Papers were not the first classified documents he removed from his workplace, and some are still relevant today.
Past negotiations broke down because Saudi Arabia's government wouldn’t commit to certain safeguards against eventually using the technology for weapons.