upnext wayne karlin discusses book. at 7:30 eastern. beatrix hoffman's take on the health care system over the last eighty years. and thomas stanton explores why some firms fail. this week david k. johnston diss his book "the fine print" how they use plain i english to rob you blind. visit booktv.org for more information in an interview taped outside of washington, d.c., wayne karlin talking about his book wandering souls which is an account of the u.s. soldier return to vietnam to return a notbook he took from a soldier he killed during the north vietnam war. >>> joining us now on booktv is author and professor wayne karlin who most recent book is "wandering soul." professor karlin who was homer? >> he is a friend of mine who retired living in north carolina. he was a officer platoon leader in the vietnam war. and he had contacted me a number of years ago because i had some contacts in vietnam vietnamese i had been working with, he had taken a documents and a book from the body of an vietnamese soldier he killed during the war. and wan