When it comes to fingering trouble spots in the arc of crisis that springs from the Middle East and ranges west to Libya and east to India, No. 1 -- with a bullet -- is invariably Pakistan. It's a vexing stew of tribal rivalries, economic stresses, religious hatreds and a perpetual war alert -- perhaps including nuclear war -- against neighboring India. So we wrap up up the first week of Command Post with a deeper look into the challenge it poses. Thanks for watching!