Video emerges of firefight where Navy SEAL Charlie Keating was killed by ISIS

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A new video from The Guardian has been released, reportedly showing this week’s firefight that killed 31-year-old U.S. Navy Seal adviser Charlie Keating during an ISIS-led siege in Iraq, and it’s raising new questions about the “advisory” role of U.S. troops in Iraq. NBC’s chief foreign correspondent Richard Engel reports for TODAY.