In this 2011 file photo,... Pictures

 In this 2011 file photo, 11-year-old Halle Holden looks at the Black Mesa exhibit at the Sam Noble Oklahoma Museum of Natural History in Norman. Photo by Steve Gooch, The Oklahoman
In this 2011 file photo, 11-year-old Halle Holden looks at the Black Mesa exhibit at the Sam Noble Oklahoma Museum of Natural History in Norman. Photo by Steve Gooch, The Oklahoman

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