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 teaching of English to speakers of other languages (TESOL) is an area in which Australia is internationally recognized to have developed considerable and particular expertise. So, too, in the teaching of the teachers, Australia has a strong reputation for the high quality of its pre-service and in-service training of English language teachers. My department, and particularly a subsidiary within it, Australian Education International, share a conviction that this expertise is of value to our overseas colleagues, many of whom have responsibility for developing TESOL in their own countries.