This Friday, Oct. 25, 2019, photo shows a guard tower at the Nebraska State Penitentiary, in Lincoln, Neb. Nebraska officials are making an aggressive new push to remove contraband from the state's largest prisons, but the task is more difficult than it seems. Nebraska's crackdown is the latest example of states trying to clamp down on drugs, weapons and cellphones. (AP Photo/Nati Harnik)
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