In Council Bluffs, Iowa, Sen. Clinton explains her concept of foreign policy
"There's so much we can do together if we work together as a world. Remember that movie Independence Day, where invaders were coming from outer space and the whole world was united against the invasion? Why can't we be united on behalf of our planet? And that's what I want to do, to get more and more people to understand that and to be involved to protect our environment."