Internet Cases Show Privacy Law Dated

As Internet services -- allowing people to store e-mails, photographs, spreadsheets and an untold number of private documents -- have surged in popularity, they have become tempting targets for law enforcement.  Many Internet companies and consumer advocates say the main law governing communication privacy -- enacted in 1986, before cellphone and e-mail use was widespread, and before social networking was even conceived -- is outdated, affording more protection to letters in a file cabinet than e-mail on a server.