“Operation Lost and Found” has located nearly a dozen endangered missing children throughout the Denver metro area. A two-week operation by the Aurora Police Department, the U.S. Marshals, and the National Center for Missing & Exploited Children helped find the children, who ranged in age for 12 to 17. Authorities said the children were “some of the most at-risk and challenging recovery cases in the area, based on factors such as child sex trafficking, child exploitation, sex abuse, physical abuse and medical or mental health conditions.”