The article says they put any videos that might be part of a case on DVD. That is their backup, and a pretty cost effective compromise. I feel their pain, as a public entity there is some stuff we are required by law to keep forever. How the hell do you do that, how to you tell what emails are forever, what are 3 years and what are 7 years?
And what email archival system is going to be in business 'forever'.