welcome back to cnn. real pleasure to have you here. >> and a big welcome to our viewers. coming up for you this hour, first a truce. now the really hard part begins. delegates from israel and the palestinian parties prepare to negotiate a permanent ceasefire in cairo. >> police killed trying to help the people who turned fire on him. a senior u.s. general shot dead in afghanistan. the highest u.s. ranking serviceman killed in action

since vietnam. a trip to the front lines in the battle against ebola. why doctors right now are struggling to keep up. >> they're doing all they can to help those who are sick, but they're absolutely at capacity. >> a lot of developing news today so glad you're with us. israeli and palestinian leaders are in cairo today, and they're there for talks that are aimed at trying to cement a lasting ceasefire in gaza. >> and that is a major development considering what has been happening over the past month. here is the latest information we have for you. israel says it's now withdrawn its forces from gaza, that it has also destroyed the network of hamas tunnels that they say were used to launch attacks in israel. >> so right now the 72-hour ceasefire which actually went into effect 23 hours ago is holding. but lot of gazans return to their neighborhoods, hoping to see that their homes have made

it, yet finding nothing but rubble. meantime, the united nations is projecting that to rebuild in gaza could take anywhere for ten years or more. >> it's a momentous task. >> absolutely. at a cost of 4 to $6 billion. >> but we want to take you there now. our karl penhaul was able to visit one of the hardest hit areas in gaza city. >> reporter: the skies over gaza a still filled with the sound of israeli drones. but there is no rockets, no artillery fire. that's the good news. the ceasefire appears to be holding for now at least. but this is the bad. judge for yourselves. residents coming home for the first time to try and see what is left. you clearly don't need a front door key to come in. most of these homes. this man is the owner of this house. and has just had both of his

sides blown it. >> when we living with our friends, they say now you want to go home. i say to him, no, we don't have home. now our live is started now. >> the border between gaza and israel is just a short distance over that way. and when i stood here, at the same time on monday, i could clearly see israeli tanks close to this neighborhood. now, though, they have withdrawn along with all the other israeli troops according to the israeli military that is something that we'll go down well with hamas and the other militant factions. they said the previous truces had been lopsided because they allowed israeli infantry to remain in place. >> in the war, there is no winner. in the war, there is no winner. >> reporter: civilian infrastructure has been destroyed across much of the gaza strip. many people have been left

without power others without running water. if you look at history, it brings into perspective where do you start? first of all, people have to clear out the rubble. that's if you can find a truck to drag it away in. and then you have, think about putting up things like power lines. but it's a process that even according to the united nations could take up to 30 years. karl penhaul, cnn, gaza. >> it seems so depressing to even see that, karl. you join us from gaza. it seems when perhaps that there could be a peace, they had to do this the last time that there was an enormous amount of fighting and strife between israel and the palestinians. now it's it's back again and it seems

like the very people that are trying to be helped are in the same boat. >> life in the gaza industry for many many years, you can look down here on the street. yes, you can see people going into stores. yes, you can see people going to markets. it is true that not every home in gaza has been destroyed. but in major areas, in major neighborhoods of the north and east and south of gaza, neighborhoods like that have been absolutely flattened. they have lost everything. remember there are no insurance companies that could step in after some kind of natural disaster or anything like that. there will be nobody but their own hard work to try and replace that. and bear in mind with closed borders it's going to be very difficult to get anything, any building materials in a lot of people don't have work. where do they get the money from to rebuild their lives. it seems to be an impossible cycle from here on.

and the united nations is well aware of that. they say that a cease-fire at the end of the shooting is not an end in itself. that is rather where the drama begins. let's take a listen to what they say. >> a cease-fire in itself is not enough. it is essential because it's life-saving, and it was needed now. but we cannot have the situation in gaza simply return to the pre-existing conditions of the blockade. this was already unsustainable before this conflict, and it will be worse because of the destruction of property, infrastructure, and the loss of life that has occurred during this conflict. >> it has been one of the key demands of the militant factions both in military and political wings here in gaza that at the core of this, this war must end with some kind of agreement to lift what they call the blockade of gaza so there's more freedom of movement of good, services

and people across its borders and an end to this perception that gaza has become in effect an open air prison. but of course those talks in cairo are not going to be easy at all. israel wants one thing. they want the dede -- demilitarization. but the israelis have made it very clear they still view hamas a jihadist terrorist organization. they won't sit around the table with them. somebody is playing shuttle diplomacy between a number of rooms there. >> we saw the frustration just in the voice in the expressions of the man whose home you were touring that was destroyed. are there some who just say i'm not coming back? i'm going to try to find another place to live if i can? and it's just not worth it anymore? >> reporter: you would think. i said hey, fit was me, i would

just say the toys are there. the kitchen's there. the furniture is there. it's all under the rubble. let's leave it. let's go somewhere else and start over again. but that's the problem. in gaza you can't do that. there is nowhere else to go. you can't leave gaza. the borders are there. the borders are sealed. and so effectively they have to rebuild where their homes fell. they don't have any option. that is really what makes this such an impossible thing for them. it's so difficult to get your head around that one of the men that we saw yesterday, he looked, he saw his home, he pulled literally a few ration from underneath the rubble. and he said, i can't understand what i'm looking at. i think that i'm in a dream. he said, and i've got to go back now and tell my parents what i've seen and i don't know what i'm going to tell them. bear in mind that probably half a million or more have been displaced by the fighting. and 275,000 of those are currently sleeping in u.n.

schools that have been set up as shelters. they weren't long-term shelters, but that's where they are right now. and for how much longer,kiran? >> karl, you said virtual open air prison. nowhere to go for the people there. we're going have so much more ahead on the situation in the middle east. >> karl eluded to egypt's role in getting the cease-fire on the table. we'll look at how this man is playing into all of this. egypt's new president. how is he dealing with the crisis? we'll also look at his current stance and how it may surprise you. we'll also get a live report from cairo at some point later today. first let's check some other stories in the news at this moment. >> we begin with a staggering high-tech theft. an online security company is saying that hackers in russia stole 1.2 billion user names and passwords for about a half million e-mail addresses. they say it could be the biggest theft of its kind. the company, hold security, says

that the cyber gang made money by sending spam to those addresses that they were able to steal and then selling bogus product like weight loss pills. the company is also saying for people who fear they were victims of this they can check the web site for free to see if they were indeed hacked. >> if you have one of those shiny iphones or galaxy phones, information just into cnn that apple and samsung have called off their patent war own outside the united states. this ends legal battles in australia, japan, south korea and the u.k. the two tech giants have been fighting since 2011, largely over the design of the smartphones you're seeing now. this of course is a lucrative sector. the two companies both dominate. rupert murdoch's 21st century fox pulling its offer to acquire time warner, the parent company of cnn. the initial $80 billion bid was rejected last month. that merger would have been the biggest in recent history in the united states. fox shares fell 10% after unveiling the bid but gained in

after-hours trading after news of the withdrawal of that bid. rescue and recovery efforts continue in southwestern china afterson's powerful earthquake. food and tents were dropped in the quake zone this is in hunan province. 589 people are now confirmed dead. and rescuers there are still searching for survivors amongst the rubble you can see there. a top american military officer is expressing condolences after a two-star general in the u.s. army was shot and killed by an afghan soldier today. on face book general martin dempsey, chairman of the joint chiefs of staff said quote we serve and where we serve we're often at risk. >> that major general harold green was killed in this attack. it happened at a military training facility in kabul, afghanistan, kind of the equivalent to west point in the united states. so of course it shocked many. 15 other coalition troops, including a german general, were wounded. our jim sciutto has more. >> reporter: it was a brazen

attack, killing the most senior u.s. officer since 9/11. and it began with a routine trip to afghanistan's premiere training facility for afghan military officers. a delegation of senior american and coalition officers was visiting the marshall fahim national defense university outside kabul when disaster struck. an afghan soldier opened fire with a russian-made light machine gun. major general harold green, the deputy commander of the security transition in afghanistan was killed. 15 coalition soldiers, including eight americans, were injured, some seriously. forces responded, killing the shooter. pentagon officials tell cnn the shooter was an afghan soldier who had been with his unit for some time and had completed a rigorous seven-step vetting process to ensure he was not a taliban fighter. >> we're months away from the u.s. handing over security responsibility for afghanistan to afghans forces like these.

does this undermine your confidence in their ability to take over that role? >> the afghan national security forces continue to perform at a very strong level of competence and confidence and warfare capability. they have had a good year securing not one but two national elections. >> reporter: so-called green on blue attacks where afghan soldiers attack their coalition partners have been an ongoing and grave problem for the u.s. and coalition forces. and today's attack made clear the risk remains. >> as we turn more and more of the security responsibilities for these installations over to afghan troops, i think the risk will rise. because since we don't control who the afghans assign to these duties, it is very easy for the taliban to infiltrate these people. as we draw down our force, the chances for this to happen increases, not decreases. >> reporter: i also asked admiral kirby whether this kind of attack has eroded the trust

between u.s. soldiers and their afghan counterparts. and he says, actually that trust is growing. the numbers support that to some degree. these attacks peaked in 2012. they declined significantly since then. but measures in place to reduce that risk have only mitigated it. they have not eliminated it. as admiral kirby said, afghanistan still very much a battlefield. jim sciutto, cnn, washington. >> as jim just mentioned, the frequency of attacks by afghan soldiers on u.s. and nato personnel has actually been declining. >> that's what surprised so many. according to the publication "the long war journal" these attacks peaked back in 2012 with 61 coalition deaths, then dropped dramatically to 14 last year and just three so far this year. still to come on cnn, we have an exclusive look inside the ebola hot zone. >> we're going to take you inside an overcrowded clinic in sierra leone. also australia makes a major announcement about the next phase of the search for missing

malaysia airlines flight 370. also a spacecraft launched a decade ago is about to reach its destination and attempt a first of its kind maneuver. you're going to want to see details on this next. in the nation, the safest feature in your car is you. add vanishing deductible from nationwide insurance and get $100 off for every year of safe driving. we put members first, join the nation. nationwide is on your side.

welcome back, everyone. as health officials struggle to contain the ebola outbreak, british airways is now suspending flights to liberia

and sierra leone throughout the month of august. the airline cited what it calls quote the deteriorating public health situation in those countries at the center of the ebola outbreak. >> the deadly disease may have actually spread, at least possibly to the middle east. the saudi ministry of health say they are now testing a man who is showing signs of the virus. it is important to know that he returned from sierra lowora zb* /* lee leon. >> many of the clinics are at max capacity. >> our reporter got access to a very busy treatment center in calho calhoun. >> reporter: taking incredible care to stop an unprecedented outbreak. ebola can lead to death with just one drop of infected fluids.

already dozens of doctors and nurses have died in this outbreak. still dr. stefan kruger says he had to come. >> i just think this is really needed. there's a really big lack of resources. and at the moment in calhoun if it wasn't here they'd be missing. that's a good enough reason. >> reporter: at calhoun they are losing the battle. ebola has hit four countries. the number of infections continue to rise. this outbreak is out of control. in the last two weeks, they've doubled their capacity here for confirmed ebola patients. and they're doing all they can to help those who are sick, but they're absolutely at capacity here. >> the level of effort that it is right now stop this diseases? >> no. to be fair, no. and it's really difficult. we are running behind. it's really like it's frustrating for us because we don't have the capacity to go everywhere. >> reporter: but here they do what they can.

in the high risk zone, this woman calls out for help. she has ebola. so does her son. ebola is so deadly it's killing our citizens. it's killing our country says this woman. her husband and son died of the disease. 70% of confirmed cases here will die, too. >> so she's confident. >> reporter: to talk to her we must stand a few feet away. the strict protocols protect us. the cruelty is they isolate her. still, tena believes her 12-year-old daughter will make it. and so will she. we're feeling much better, she says. we are strong and we're going to fight. >> what happens when you actually beat this disease? >> yeah. i mean, that's a real highlight of everything that we do here. everybody comes to watch the patient come out of isolation.

i think it motivates all the staff to continue doing the work that we do here. >> david mckenzie, cnn, calhoun, sierra leone. >> heart-breaking to see the families, mothers, sons, all dealing with this at the same time. >> it's just amazing that we talk so much about the two u.s. aid workers that are getting this special serum. we're going to have more about that. but some of these people are recovering on their own. >> that's true. there are hundreds of course infected in west africa. but as we've mentioned, two americans infected with ebola are now getting treatment at emory university hospital in atlanta, georgia. >> nancy writebol and also dr. kent brantly were both given this experimental serum before leaving liberia. so far a surprisingly positive impact. can they make this en masse to help the many people suffering in africa, and also what the implications of an experimental treatment that has not yet been approved. we're going to talk about that much more later in the program.

now we want to get you new information on the search for flight 370. australian authorities have now selected the dutch company fugo survey to lead the underwater search for the missing airliner. it's been five months since the plane went missing. royal malaysian navy's hydro graphic ship set sail for the southern indian ocean monday to help take part in the search. the boeing 777 disappeared march 8th on a flight from koal koala lampur to hong kong. good to see you, andrew. what do we know about this company? it's an oil and gascon subtling firm. but what really -- what hardware do they bring to the table? >> if you look at the work they do, they are actually very well placed to bring what is needed at this stage. what's needed is basically sophisticated equipment which is going to build up a picture of the ocean floor using sonar

equipment. this company, fugro, it supports the oil industry. i'm talking about oil, offshore oil rigs, which are often placed in very inhospitable parts of the ocean. they have to make sure that the sea bed that they're placed on is stable and can function for the oil rigs. so they are very very use used to dealing with these underwater issues which obviously they're going to encounter so much of in this search. so we've got a dutch team which is going have two vessels, basically trolling or pulling behind them two of the sonar equipment devices. and they will use the information the sonar sends back to them to build up this very very detailed picture of actually what is on the ocean floor. the idea, of course, if they see any anomalies which is a piece of wreckage of mh 370, they will be able to identify it and then the process starts that we actually have finally some facts about with where this plane is.

but at the moment we have to keep pointing out it's still sort of informed guesswork, erol, because we don't know. the authorities will say for themselves they don't know for a fact that this huge search site, 20,000 square mile search is in fact the final resting place of mh 370. as i say, it is still educated guesswork at best. >> all right, andrew stephens live for us in hong kong. thanks very much. coming up on cnn, a giant leap. this is pretty ex siefticiting scientists. >> and science geeks like me. >> this is really cool. scientists say today is the take a spacecraft called rosetta, its 10-year journey should begin to pay off. what is this about? find out next. le. [ alex ] transamerica helped provide a lifetime of retirement income. so i can focus on what matters most. [ female announcer ] everyone has a moment when tomorrow becomes real.

transamerica. [ female announcer ] everyone has a moment when tomorrow becomes real. this is bill. his doubleheader day at the park starts with back pain... and a choice. take 4 advil in a day or just 2 aleve for all day relief. peanuts! peanuts! crowd cheers! nerds.

scientists at the u.s. space agency are very excited to be the first land an appropriate on a plan comet. >> they hope this will prove to be a giant leap in exploration when it catches up with a comet known at 67 p. >> reporter: since humans first started exploring space, only a handful of spacecraft have landed on celestial bodies. now for the first time in history, mankind will land a craft on a comet. it's been a 10-year journey covering 6 billion kilometers for the spacecraft rosetta. the u.s. space agency says rosetta is less than 230 kilometers away. once there they hope to find clues to the origin of our own solar system. rosetta will be the first spacecraft to orbit a comet and then land a probe on its nucleus instead of just flying by to snap pictures. >> for the very first time,

you're going to learn a lot. and it's going to be the basis for new studies that will go on for a long time. it's like breaking the ground for building a building. >> reporter: this building is already taking shape. from the images rosetta has sent back. the latest ones revealed 67 p is made of two pieces joined together. the neck or connecting part has a much brighter spot, which means it has a different composition or grain size. it could even be ice. and they've learned more from studying changes in the signals coming from rosetta. >> the nucleus is pulling the spacecraft out of its planned orbit. and that can be seen as a shift in frequency of the transmitted radio signal from the spacecraft. >> reporter: on its way, rosetta flew past two asteroids including this one called luticia. scientists can't wait to get their hands on more data when rosetta starts orbiting comet 67 p on wednesday and lands a probe

on its nucleus in november. >> the amazing thing about that is just to put a decade into your life's work for this one shot to hope it works. >> they're very excited. >> that would not work for us at all. >> not at all. millions of people in japan are facing dangerous combination this week. >> a powerful typhoon approaching and a brutal heat wave as well. our resident meteorologist joins us here with more. it's serious stuff for people in japan right now. >> it is absolutely. there's some good things about the storm system. start off with that. this storm a couple of days ago was a category 5 equivalent. a supertyphoon. a menacing feature. we saw here in the last few days the winds at the very upper-levels of the storm system some shear taking place kind of ripping the storm system apart. the winds have come down to 150 kph, about 92, 93 miles per hour. we're talking about a strong category 1 equivalent fitting 1,000 kilometers or 600 miles away from taipei city in

northern taiwan. the system in close proximity to a lot of people. the concern is where it's headed. the winds expected to stay in that top end category 1 over the next couple of days. from friday night to saturday morning it is on a bee line for southern japan that's already seen about a meter or softball 40 inches of rainfall in the last couple of days alone. already one of the wettest augusts in recorded history across southern japan from a previous tropical storm. now we have tie hoon yphoon hal. tokyo in the concern. southern japan the next few days. certainly something will follow throughout the week here. also the heat wave taking place across japan, 38 degrees celsius across southern japan right here. that is 100 degrees fahrenheit, 30 celsius is 86 degrees fahrenheit. that's the average. talking about well above average temperatures. in the recent weeks 15 people have lost their lives across

japan. tokyo in the 36 celsius. 87 people have been admitted to hospital across japan because of this heat wave. look at the women dressed in summer kimonos out there. they splash water onto the streets across portions of the ginza shopping district in tokyo. the warm weather not only kids find weigh to cool off. we know the typhoon will bring in some rain that will help with the temperatures. but unfortunately the flood's going to be very disruptive in that region. >> thanks very much. israel and hamas preparing for peace talks in cairo today. >> we're talking about why egypt's new government has stepped in. and what they have at stake as well as they try to play this role of peacemaker. plus it's a serum that could potentially change the future of ebola treatments. we're going to take a look at something called zmap ahead.