We cannot stop every act of senseless violence. We cannot know every evil that lurks in troubled minds. But if we can prevent even one tragedy like this, save even one life, spare other families what these families are going through, surely we've got an obligation to try.

Why can't I just eat my waffle?

Those jeans are comfortable, and for those of you who want your president to look great in his tight jeans, I'm sorry I'm not the guy. It just doesn't fit me. I'm not 20.

For me and Michelle, this visit has therefore held special meaning. Throughout my life, including my work as a young man on behalf of the urban poor, I have always found inspiration in the life of Gandhiji and in his simple and profound lesson to be the change we seek in the world. And just as he summoned Indians to seek their destiny, he influenced champions of equality in my own country, including a young Martin Luther King

Iran will for sure have pledged to the international community that it will not develop a nuclear weapon, and now will be subject to an additional protocol, a more vigorous inspection and monitoring regime that lasts in perpetuity.

At least Romney and McCain, they respect the rule of law. At least Romney and McCain, they understand their limitations.

The Iranians may simply try to run out the clock.