I read somewhere that they have 48 hours from the time they fuel the thing until the time when the acidic fuel begins to degrade the missile...... don't know how fast or how severely that problem develops but they may not have many more hours to decide to launch it or else risk catastrophe when they do try to launch it and it blows up. Would be NICE if we had some way of making it blow up for them..........
I mean the test would be a pretty big step by them but it isn't going to endanger America yet.