If Egypt should fall, it will mark the beginning of the end for what little remaining stability there is in the Middle East. Jordan is facing similar unrest, as are Algeria and Yemen. Lebanon and Tunisia fell in January. It is highly unlikely that these events are unrelated. A combination of leftist and Islamist forces provoked the protests, and we are likely looking at a ring of radical Islamic states rising up to surround Israel. Once their power is solidified, perhaps in a year or two, they will combine forces to attack Israel. If Israel falls, the United States will...