Please show me where the Constitution says that.
As human beings, we have the right to choose our government and when it because a dictatorship we have the right to throw off the shackles and change it. Secession is changing the government.
Don't believe that? Then you don't believe in individual freedom and deserve to be a slave to people like Bozo, the WH clown.
States acceded to the Federal Constitution they can secede from. http://books.google.com/books?id=q_M9AAAAIAAJ&dq=albert+taylor+bledsoe+davis+a+traitor&printsec=frontcover&source=bl&ots=vWxmgmzQ0h&sig=oVKoEHBf5sVdduijWjfIa_hOFoU&hl=en&ei=PPGVSuivI-qI8QaVvoS3DA&sa=X&oi=book_result&ct=result&resnum=1#v=onepage&q=&f=false