From The Telegraph:
So, if Israel is bluffing, are the existential threats against Israel by Iran simply a case of hyperbole? Of course, the bigger issue is why would Israel believe Iran's threats were hyperbole? After all, if someone kept threatening your life ... your existence ... and then worked diligently to become capable of carrying out the threat, would you take steps to make certain that threat cannot be carried out.
And would you be concerned because someone else considered your preparations annoying and "noisy"? I suppose you would if that someone were the local "cop." [at 10:40 mark]