They served beside U.S. troops and wore the very same uniform. But now 18,000 Afghan interpreters fear for their lives as the American government completes a military withdrawal from the country. How we treat our closest allies tells a story about who we are as Americans: the meaning of "no man left behind," and the value of friendship, loyalty and honor. Steve Miska, a retired Army officer and the author of Baghdad Underground Railroad, joins Left of Boom to discuss what it will take to stay true to our interpreters.