9th Amendment: The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people.
The Ninth Amendment was designed to protect other Amendments from being changed by future laws. Examples of such future laws are Prohibition or censorship laws, such as defamation, obscenity, etc. that limit or undo absolute Freedom of Speech. The Ninth Amendment protects natural (inalienable) rights, including unwritten natural rights, such as the right to eat, sleep, breathe, make and raise children, etc. that nature grants to animals too. In other words, it is a general freedom law to counter any attempts by government to create new laws that counter old laws, or take away any freedoms, written or unwritten. This is why the Ninth Amendment is often used by legislators to prevent new bills that take away human rights from becoming laws. It is also used by defense attorneys to protect a person who has broken a new law that takes away a human right.
As usual, the Wikipedia editor in charge of the "9th Amendment" is arguing with people who don't want their rights taken away (I am linking here to the Discussion Page and not the Article Page but you can find the Article by clicking on the tab):http://en.wikipedia.org/wiki/Talk:Ninth_Amendment_to_the_United_States_Constitution
Regarding the modern published book "No Treason" of which the old Civil War manuscript "No Treason: A Constitution of No Authority", Lysander Spooner was thought of as an anarchist and opened his book with this:
"If they had intended to bind their posterity to live under it [the Constitution], they should have said that their object was, not 'to secure to them the blessings of liberty,' but to make slaves of them; for if their 'posterity' are bound to live under it, they are nothing less than the slaves of their foolish, tyrannical, and dead grandfathers."
He goes on to ask when we human beings ever agreed to live under the US Constitution...and for modern world travelers, this would now be a burning question.
I am no anarchist, but outside the USA, I "agree" in some sort of "social contract" with my fellow Americans only to be bound by actual treason laws.
Otherwise, even though the Constitution should be protecting me several different ways against the bizarre IMBRA law, the laws of whatever country I am in determine whom I am allowed to say hello to or not.