. >> narrator: our journey begins in khost province, eastern afghanistan. this is where al qaeda trained some of the 9/11 hijackers. it's now the heartland of the haqqani network, a ruthless branch of the taliban insurgency responsible for some of the most vicious attacks of the war. over the past year, there's been a dramatic escalation of kill/capture missions here. we're with the soldiers of the 101st airborne division and their afghan counterparts. they've received intelligence that a wanted taliban leader is hiding out nearby. >> we're going after a mid-level insurgent here in the district. guy's name is gulab, this guy right here. he's an ied facilitator, kidnapper, just all-around bad guy. we're going to do an air assault on his compound. >> roger, we copy. ( helicopter blades whirring ) >> narrator: in khost and across the country, targeted raids like this have become a defining tactic in the war against the taliban. although 30,000 extra us troops were sent to afghanistan last year, here in khost there are still not enough forces to keep security o

. >> smith: here, in the province of khost, the cia unit is known as the khost protection force, or kpf. they are based in afghanistan, but their work is focused on pakistan. up at the border, we were stopped from filming them, but a former commander agreed to talk if his identity was protected. >> smith: the wikileaks war logs released in 2010 contain references to the cia's private army in khost. they fire mortars at taliban and al qaeda targets in pakistan. with the help of drones, "shadow coverage," they ambush and kill insurgent fighters crossing the border. >> smith: pakistan is supposed to be an ally in the war against the taliban and al qaeda, but us soldiers fighting along the border complain that pakistan's army supports the militants. >> from my time on the border, we experienced, on a regular basis, pakistani military complicity with the insurgency. it could be turning a blind eye as the insurgents launch rockets at our bases. it could be allowing passage, you know, kind of right under their noses. it could be even aiding and working with the insurgents to know what times to

it's sunny at the khost and it will be very comfortable with a lot of 70s. a lot 6 hazy san joses. -- a lot of hazy skies. concord, fairfield, everyone else is rather close. i mean the city, 62. but there's the fog. south of monterey, towards big sur and off the coast as well. it's not a factor today. what is a factor is the big old dome of high pressure. warm to hot conditions away from the coast. nice if you are closer to it. fog's not gonna play in the forecast today. 70s for the coast to near 80. summer begins tomorrow. wednesday a little cooler by the coast and then cooler for all as we head towards the end of the week, dave. >>> 8:25. a big development in morning in a major lawsuit against walmart. what the supreme court has july ruled in the case that originated by here in the bay area. >> reporter: we're live in the third hour of a read-in. how the community plans to save its libraries in the city of oakland. >>> also, looking for a new cure for insomnia? how changing the -- how changing the temperature of a particular part of your body may help you

taught it's nice by the khost. it's warm to hot -- today it's nice by the coast. it's warm to hot.r daly city, pacifica and half moon bay, tomorrow we cool it down. temperatures drop really big nurse and -- thursday and friday. we're sitting here with a dome of high pressure but folks here wichita, kansas a storm left behind destruction. what's new? homes here in the valley after a wind-packed storm moved through. usually may and june is the prime time. >>> 8:42. frustrated san francisco cabdrivers could affect your travel plans today. what we've just learned about the -- about this afternoon's threatened walkout. >>> also, the report that came out just hours ago, you will want to hear this -- if you are either buying or selling a house. the bay area -- a place with natural beauty and a forward thinking spirit. at bank of america, we've been fueling economic growth here for over a century. today we're investing in innovations that will define our future. every day, we're working to help set opportunity in motion. from financing a solar project for the milpitas school district to fu