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What's the U.S. plan on Russia's "all out" invasion? Plus, a look at the strategy for fighting ISIS.
(CNN) - When she was America's top diplomat, Hillary Clinton acknowledged that negotiating with the Taliban for Bowe Bergdahl's release "would be hard to swallow for many Americans," according to a copy of her upcoming book, "Hard Choices," which was obtained by CBS News.
In other foreign policy matters, Clinton writes how she pushed for arming Syrian rebels and also highlights her differences with President Barack Obama on the high-stakes issue. She also said that she regretted her 2002 vote in support of U.S. military action in Iraq.