How far does the “workplace” extend so as to apply the rules in O’Conner v. Ortega? May prison officials search the vehicles owned by prison employees parked in the prison parking lot? Do they need “probable cause” and a search warrant, or reasonable suspicion? If the latter, what is sufficient “suspicion”? (See Wiley v. Department of Justice, 328 F.3d 1346 (C.A. Fed. 2003).)