. >> woodruff: nick eberstadt, put this in some context. what does this mean for the work force overall? >> well, the united states is older than it's ever been before. but we're going to see a fundamental, dramatic push towards further aging over the next 20 years. think of it like this. over the next 20 years, the u.s. population may grow by about 60 million, a little over 60 million. half of that growth will be people over the age of 65. we're going to have a population explosion but it's going to be an explosion of senior citizens. that's going to mean that the ratio of potential workers to potential retirees is going to change really fundamentally. right now it's about 5 to 1. 20 years from now it will be around 3 to 1. >> woodruff: ted fishman, how well prepared is the rest of society to care for all these boomers getting older? >> we're not prepared right now. we're in a bit of a panic. i'm going around the country talking about my book. people are so desperately afraid they're going to outlive their money. that means they're adjusti