>>46....... What the hell are you talking about??? Did you read
>>43 at all??? Or maybe even
>>48.
>>53 Hey... You do realize that not everything you see on the internet is the truth, right?
All of those were from http://www.dumblaws.com/laws/united-states/montana
A site that basically spreads a great deal of falsehoods without providing sources or statutes as evidence that these laws even exists.
I can only say one thing about the mail one: It's a federal crime for ANYONE to open up another person's mail.
The relevant statute is 18 U.S. Code § 1703 - Delay or destruction of mail or newspapers, section (b), paragraph 2:
Whoever, without authority, opens, or destroys any mail or package of newspapers not directed to him, shall be fined under this title or imprisoned not more than one year, or both.
It's also illegal to take mail out of your box with intent to prevent it reaching someone else (§ 1702, emphasis mine):
Whoever takes any letter, postal card, or package out of any post office or any authorized depository for mail matter, or from any letter or mail carrier, or which has been in any post office or authorized depository, or in the custody of any letter or mail carrier, before it has been delivered to the person to whom it was directed, with design to obstruct the correspondence, or to pry into the business or secrets of another, or opens, secretes, embezzles, or destroys the same, shall be fined under this title or imprisoned not more than five years, or both.