. >>> this is "gps," the goble public square. welcome to all of you from the united states and around the world. i'm fareed zakaria. today on the show, the state of america. it's a nation divided, a nation in tumult. but is it a nation in decline, a nation whose glory days are behind it? or is america as strong and innovative as ever? i'll talk to three authors who set out to explore the real america, beyond the beltway and beyond the headlines. jim and deborah fallows and steven brill join me to discuss this. >>> and reading, writing, and arithmetic from around the world. global lessons from a man who has spent his career studying the best education systems from around the globe. what the u.s. can learn from others. >>> tick-tock, tick-tock. seconds, minutes, hours, days, months, and years. just what is the nature of time? and are our days truly numbered? i will talk with the brilliant physicist. >> time really goes at a different speeding defending how you move and where you are. >>> but first, here is my take. in september, go