Joseph J. Lhota

What I learned from 9/11 that is really important, first and foremost, you have to motivate all the workers and understand that they've left their families to help clean up a pretty awful situation. Every time you have an emergency management situation, it's all about teamwork.

Over the past decade... while many businesses have pursued what I call 'business as usual,' I have been part of a different, smaller business movement, one that tried to put idealism back on the agenda.

What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.