What is the main topic of the passage?

Today, I ask you to focus on the challenges of the Information Age. The dimensions of the Information Revolution and its limitless possibilities are widely accepted and generally understood, even by lay people. But to make the most of it, we must acknowledge that there are challenges, and we must make important choices. We can extend opportunity to all Americans or leave many behind.We can accelerate the most powerful engine of growth and prosperity the world has ever known, or allow the engine to stall.

The average life of a hurricane is only about nine days, but it contains almost more power than we can imagine. The energy in the heat released by a hurricane’s rainfall in a single day would satisfy the entire electrical needs of the United States for more than six months. Water, not wind, is the main source of death and destruction in a hurricane. A typical hurricane brings 6-to 12-inch downpour resulting in sudden floods. Worst of all is the powerful movement of the sea -- the mountains of water moving toward the low-pressure hurricane center. The water level rises as much as 15 feet above normal as it moves toward shore.