October 1, 2013
File photo of the Yarnell Hill Fire, which killed 19 firefighters.
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Crucial questions remain despite report
Pages into the report released Saturday on the death of 19 wildland firefighters in the Yarnell Hill Fire in late June, investigators discuss “fog and friction,” a military term that describes the challenges soldiers face trying to communicate, understand and respond in the heat of combat. “Fog” refers to the chaos of battle and “friction” to ambiguous information, fatigue and unexpected events.