If the government wants to look through my emails good for them. I'm sure they'll enjoy all the "penis enlargement" junk mails I'll get.
Seriously, unless you have something in your email that is really private, then big deal. I have emails from friends, but it doesn't bother me if someone wants to try and access them, because they will if they want to.
Emails aren't impenetrable to hackers etc, so nothing in your email is really safe. Besides, I'm almost fairly certain about this, when you sign up to hotmail and you tick a contract saying that they can access whatever's in your inbox anyway.