Following an investigation by a Senate committee that identified a drug problem among Job Corps students, the Job Corps Zero Tolerance Policy was established. All staff were instructed that they would be held accountable for actively supporting and implementing the policy and that they would be held to the same standards of conduct as students. After several false starts, the Forest Service implemented a random drug-testing program to which all Job Corps Civilian Conservation Center staff were subject. A union sued on behalf of the employees challenging the drug-testing program. What should the court decide? Why