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Iraq war veteran Scott Ostrom's "Note to Self"

Ostrom is among the nearly 20 percent of troops who came home from Iraq with post-traumatic stress disorder. In a letter to his 15-year-old self, he shares the story of his "invisible wounds" and overcoming PTSD in "CBS This Morning's" Emmy-nominated series "Note to Self." His advice is accompanied by a set of Pulitzer Prize-winning photographs by Craig Walker of the Denver Post.