Online Privacy Issue Is Also in Play in Petraeus Scandal - nytimes

On the Internet, and especially in e-mails, text messages, social network postings and online photos, the work lives and personal lives of Americans are inextricably mixed. Private, personal messages are stored for years on computer servers, available to be discovered by investigators who may be looking into completely unrelated matters.  Online Privacy Issue Is Also in Play in Petraeus Scandal