According to the privacy policy of most companies, they don't read your e-mails nor your instant messages. So I wondered, if someone was writing e-mails that threatened the security of the United States (i.e. bomb threats), how would the government track them down? What about a private organization: can it scan the contents of e-mails exchanged between two individuals? Obviously the threat here is not one of national security but perhaps breaches of terms of service. Can such trivial (potential) offenses justify the invasion of privacy?