Because the encryption technology currently available to the average user is pretty much useless if the NSA or other government agency takes an interest in your e-mail..
THIS is misleading. Maximum strength PGP encryption is virtually uncrackable, first of all. Second, the laws concerning cracking encrypted files are different from the authority necessary to get emails without a court order. I fault the courts here - make the court order process easier, but never, ever let anything be done without the approval of the justice system.
It seems Yoda worked hard on the wording of this week's poll...
I remember reading an interview with a Prison Break executive who said "So and so died in the 2nd season but we found a way to plausibly bring her back." Although I don't watch that show, if I did something like that would be a deal breaker for my continued viewership. I hate, hate HATE cheap plot toys to keep characters around.
On the other hand, sometimes a show like Fringe comes up with a clever way of retaining a character, e.g. flashbacks or alternate reality where a character is still alive.
Machines that have broken down will work perfectly when the repairman arrives.