Katherine is invited to solve the algebra problem on the board at school and exceeds her teacher's expectations. The teachers encourage her parents to enroll her in a more challenging school because of her precocious abilities in math.

Ellen talks about the different strategies that people use to cope with stress.

The news clip recaps immediate events leading up to and the aftermath of the fall of the World Trade Center, following Bush's actions.

At a company meeting, CEO Eamon Bailey introduces SeeChange, which uses small cameras placed anywhere to provide real-time high-quality video.

Laroche and Orlean are at a flower show looking at different flowers. Laroche spots an orchid and notes that Darwin hypothesized that a moth with a proboscis of 12 inches pollinated it. Laroche then discusses how each flower and insect that pollinates it are unique, and neither one of them realizes how vital they are to one another.