Bianca Burton, center left, and Erin Schultheis walk around the Pepperdine University's annual display of flags honoring the victims of the 9/11 terrorist attacks, Monday, September 10, 2018, in Malibu, Calif. Terrorists used hijacked planes to crash Sept. 11, 2001, into the World Trade Centers, the Pentagon and a field in Pennsylvania. Nearly 3,000 people were killed in the attacks. (Photo by Jae C. Hong/AP Photo)
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