So must we write massive exemptions for police officers into wire fraud laws so that they can 'tell lies' online? Do we need a law excepting them from pretending to be a child during pedophile stings? And another law for giving a false name to a police officer, for when they are doing internal investigations? Cop are given some room for a reason. Adding a bright-line exception to every criminal law is not practical. It is left to the courts to set the rules.