For Omar bin Laden, the fourth eldest of Osama bin Laden’s 20 known children, the awful realization that his father was a terrorist mastermind who was plotting a global conspiracy that would destroy the lives of thousands of innocent people and even his own family came gradually. Of course, there were warning signs: Omar’s childhood was marked by regular beatings and survivalist training; the growing army of ruffians and retainers who called his father “Prince”; and that Afghan mullah who had given his father an entire mountain in Tora Bora