When we think of the major threats to our national security, the first to come to mind are nuclear proliferation, rogue states and global terrorism. But another kind of threat lurks beyond our shores, one from nature, not humans - an avian flu pandemic.

If there's even one thing we can do - even one life we can save - we have an obligation to try

Instead of giving in to cynicism and division, let's move forward with the confidence and optimism and unity that define us as a people.

The same would be true for something like Social Security, where historically, if you just read the law and the fact that it excluded domestic workers or agricultural workers, you might not see race in it, unless you knew that that covered a huge chunk of African Americans, particularly in the South.

When I read history, I [see] what typically happens to presidents and the other party during tumultuous times and how people react when the economy is collapsing and they're losing their homes, losing their pensions - it sort of tracks, what ended up happening, because some of that is human nature.

This union may never be perfect, but generation after generation has shown that it can always be perfected.

And I do not want, and I will not accept, a deal in which I am asked to do nothing, in fact, I'm able to keep hundreds of thousands of dollars in additional income that I don't need, while a parent out there who is struggling to figure out how to send their kid to college suddenly finds that they've got a couple thousand dollars less in grants or student loans.