Senior Airman David Knutson, 627th Communication Squadron commander executive assistant, swims in the four mile Swim to Live relay in the Bellingham Bay, Wash., Aug. 24, 2015. The Swim to Live relay event was founded to raise awareness of and educate communities on the causes and effects of military Post-Traumatic Stress Disorder, to pay tribute to the military members who lost their lives due to PTSD, and to give military members an opportunity to face their own personal challenges while honoring their lost comrades. (U.S. Air Force photo/Staff Sgt. Katie Jackson)
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