Plot: President Obama's national security advisor answers questions about the NSA leaks, Iran, Syria and the attack in Benghazi; then, Denver, Colo. , has more medical marijuana dispensaries than Starbucks, but the budding business defies federal laws; and, Morley Safer interviews the "QB Guru" who says the new norm to get to the NFL as a quarterback starts with a tutor like him training kids as young as 8