Barack Obama: “We cannot consign our children to this future. The tragedy unfolding on our coast is the most painful and powerful…”

That's what I hope every visitor to this center takes away from their experience.

And there’s no reason to suggest that we can’t get through this one either.

They're meant to remind us of who we can be, to remind us of what's possible, so we can forge ahead.

The success of this experiment was never a given.