These things pop up all the time and never go very far. The reason is the states that would like to do it cannot survive a week without federal funding. They would lose not only funding but trading rights with other states. That means no goods coming in or going out. The state would wither and die in a very short period of time.
FYI, if you are going to link stories from WND (a worthless, nutjob blog) people should be able to sight the voices in their head as sources too.