margolick talks about his book next in arkansas. this is just over an hour.applause] >> when you look at any great photograph, there's always more to see than what meets the eye. on september 4, 1957, a stoic young black girl can, elizabeth, a member of the little rock nine, was met by an angry mob during her first days to desegregate little rock central high school. one of the many yelling behind her was an angry young white girl with narrow eyes and clenched teeth, elizabeth bryan. will counts captured this moment in one of the most recognizable photo of the civil rights era. it depicted the hate and fury of one young girl and the timid demeanor of another. this image circumstance -- circulated around our state, the nation and around the world. do you remember how seeing this photo for the first time made you feel? who knew that the photo of these two young girls -- one black, one white, both 15 years old worn less than four -- born less than four months apart living within miles of each other and both beginning the 11th grade -- would be so powerful in sym

even more powerful was the poster david margolick saw of the two women. this time the women were smiling and embracing one another. two women, one black, one white. but this time they were no longer entering the 11th grade. they were grown and this was a poster of reconciliation. david came across the poster during a trip to little rock for the past -- let's try that again. david came across a poster during a trip to little rock and for the past 12 years with other jobs under his belt, he has investigated what lies within that historic image for his new book "elizabeth, hazel, two women of little rock." through countless interviews he's created a dual biography so that we are able to gain an understanding of the emotion behind the two women bound together by one single photograph. david margolick was a long time contributing editor for "vanity fair." he joined their team in 1995. prior to that, he held similar positions at "newsweek" and portfolio. before "vanity fair" he worked from 1988 to 1995 as a legal affairs reporter for the "new york post" he cont

david margolick looks at their lives.aniel yergin on the impacts of the oil industry on the environment. >> current and future threats, our military must remain the finest in the world. it must remain an agile and full spectrum force that can deter conflict, project power, and win wars. that is a great challenge, and that challenge will bring about difficult times and difficult decisions, but i would tell you as well, it is an opportunity to shape, to change, to transform the army, not just to come to terms with the fiscal constraints of today, but to better meet the challenges that we know, somewhere, sometime we will face tomorrow. >> with possible defense cuts in the future, the u.s. army secretary talks about how the army could shrink and still maintain its capability. watch the entire video at the c- span video library. host: we are joined by congressman and dr. paul gosar for a conversation on the "fast & furious" investigation. let's start with the announcement yesterday on the attempted assassination plot on the s