It’s not that strange, that’s what happens when you forget if you are a scientist or a politician. If you try to be both at the same time the result is you’ll misrepresent your scientific data to make it fit your political goals.

In this case they keep mentioning uncertainty and the argument is that otherwise the public may behave in a way they don’t want. Whatever your opinion on the arguments, that’s not science and it is also poor politics because sooner or later they’ll lose credibility and really that’s all they have.