The Federal Communications Commission is making cellular network operators reveal the location of the cellular base station used when mobile phone users ring the emergency services. The new ruling which comes into force is causing concern to civil liberty group the Center for Democracy and Technology, which claims that the information could be used to invade personal privacy, by 2001 the cellular operators are going to have to be able to provide the location down to a 125 meter radius. Civil libertarians are insisting that the tracking information doesn’t get made easily accessible to law enforcement agencies, including the FBI, and should have to be only available by a court subpoena.