The Ninth Amendment is a constitutional safety net intended to make
clear that individuals have other fundamental rights, in addition to
those listed in the First through Eighth Amendments. Some of the framers
had raised concerns that because it was impossible to list every
fundamental right, it would be dangerous to list just some of them (for
example, the right to free speech, the right to bear arms, and so
forth), for fear of suggesting that the list was complete.