Language slipped into a federal law designed to protect religious land rights is costing states including Nevada thousands of dollars a year.Language in the Religious Land Use and Institutionalized Persons Act essentially guarantees prison inmates access to special diets if they claim to be a part of a religion that requires certain foods or restrictions.“Religious diets are our most litigated (issue), and courts have repeatedly told us we have to provide them,” said Greg Cox, director of Nevada’s Department of Corrections.He told a money committee studying the prison system budget that Nevada is under a federal court order directing that …