REX MURPHY: Janet Napolitano: Myth Buster. “What is Barack Obama doing appointing someone to head Homeland Security, who, eight years after the attacks, does not even now know where the hijackers came from and how they got into their country? Here, it’s not her ignorance about Canada which should be troubling. It’s her ignorance of the most publicized event in modern American history. How can anyone be head of Homeland Security and not know the history of the 19 men who killed nearly 3,000 Americans? . . . If the man who promised Hope and Change, wants to give Canadians some Hope, he’ll Change the head of Homeland Security.”