. >> "vanity fair" special correspondent ryan burrough appeared at the "chicago tribune" printers row that fast to this past history of america's radical underground. it begins now on booktv. .. step up to the microphone appear so that the audience can here the question. keep the spirit going all year long with a subscription to the tribune's premium book section. also, feel free to download the trip books out for more information as well as access to our digital bookstore. finally the lit fest love social media. feel free to take pictures, post messages and upload them to twitter histogram or facebook using the hashtag puerto rico lf 15. please silence your phones caught in the flashes off your cameras. i will introduce our moderator. [applause] >> i like a short but sweet introduction. i will give a short one for brian. for the indefatigable research a joke that we should call him brian burrows. thank you. i am here all week. i asked him how he wanted to be introduced. he said he writes for vanity fair and write books. the book for which it is best known as barbarians at the gate wh

. >> "vanity fair" special correspondent ryan burrough appeared at the "chicago tribune" printers rowthat fast to this past history of america's radical underground. it begins now on booktv. ..