It’s been exactly 100 years since the world saw the first deadly attack with chemical weapons. The Germans deployed tons of chlorine gas on a sector of the Western front in World War I, causing 6,000 casualties. Now chlorine gas is back on the battlefield, in Syria.
Iraq may not have had the weapons of mass destruction that the Bush administration believed, but it did have stockpiles of long-abandoned chemical weapons. And this week, C.J. Chivers of The New York Times blew the lid off of the Army's long silence on those weapons — and the soldiers they harmed.
Just under a year ago US and Russian signed an accord that would facilitate continued collaboration of US and Russian scientists on nuclear energy and safety. That accord has been put on ice in light of recent events in the Ukraine.
How does one go about negotiating a complex and difficult topic such as the Iranian nuclear program? Anchor Marco Werman speaks with William Ury, co-founder of the Harvard Negotiation Project and co-author of "Getting to Yes."