drug testing

Marcus Smith works for the Transportation Security Administration. Marcus is responsible for screening passengers in airport security and the prevention of aircraft hijacking. The TSA has implemented a drug screening program which requires random urinalysis testing of all TSA employees. Marcus filed suit claiming that weekly drug testing violates his Fourth Amendment rights. Provide references. APA format. 2 pages.

Can employers force the screening of employees for drugs?
Does random drug testing violate Marcus’ Fourth Amendment rights?