he gets any bump out of this event, it will be a very momentary and fleeting one. >> suarez: fred de sam lazaro joining us from johannesburg, south africa. good to talk to you, fred. >> good to talk to you, ray. >> woodruff: finally tonight, an isolated mountain outpost, a small group of soldiers, and a window into the war in afghanistan. jeffrey brown has our book conversation. >> brown: in late april, american troops withdrew from the corn gal valley in eastern afghanistan, a six-mile sliver of rock canyon high in the mountains bordering pakistan. for much of the five years americans fought that there, the korengal was controlled by rotating companies of u.s. troops trying to wrest control from the taliban and other insurgents. during 2007/2008, author and journalist sebastian judger took five one... junger took five one month trips there to chronicle the soldiers of battle company that the 173rd air airborne. it's now a book called "war and a documentary film titled to "es reprep poe. s reentrepreneur poe." you've taken a big war and honed in on one group of soldiers. what were you after? >>

. >> ifill: fred de sam lazaro reports on a housing program in kenya, helping the very poor escape nairobi's slums. >> to houses like that, that are cheerful and airy with bathrooms. to me it was almost a sign of you just got to keep going. >> brown: and judy woodruff previews tomorrow's coast-to- coast primary contests with amy walter of "hotline" and dan balz of the "washington post." >> ifill: that's all ahead on tonight's newshour. major funding for the pbs newshour has been provided by: >> will your savings be enough to fund your retirement? what will happen if your spouse outlives you by many years? what will happen if you outlive your savings? pacific life knows that tomorrow's questions require planning today. with financial solutions and strength, pacific life can help you and your financial professional develop a plan. pacific life-- the power to help you succeed. >> chevron. this is the power of human energy. >> and by the bill and melinda gates foundation. dedicated to the idea that all people deserve the chance to live a healthy productive life. and with the ongoing support of t