>> what are you doing [ bleep ]. >> but there's no use crying over spilled ice water. jeanne moos, cnn. new york. >> that's got to hurt. cnn news room continues at the top of the hour. now, sanjay gupta and you. >> thanks for joining me. reporting to you from los angeles today. just minutes away, we're going to talk about medical history. two patients with ebola in the united states now fully recovered and off to live public lives. what they have to look forward to and what it means for the rest of us as well. plus, i'm a brain surgeon and i know the brain can play tricks that will blow your mind. the host of brain games is going to stop by to talk about it. first though, what a week it has been. here at home and abroad. we saw tensions boil over in

ferguson, missouri, we got news of the ruthless beheading of an american journalist by isis in iraq. since 2002, the number of journalists killed because of their work has risen dramatically and this got us thinking about the psychological of fear. the wounds it can leave behind. how it can drive events. joining me to talk about this is jake tapper and nick peyton wallach. he's back in beirut after another stint in iraq. thanks for joining us. before we talk about the psychology of fear, kninick, yo actually crossed paths with james foley. sometimes, it gets lost in who was he, what kind of person he was. is there anything you could tell us about him? >> i had limited experience of working with jim. we worked together on a piece about living in a rebel in fact to who was fighting alongside syrian rebels in aleppo. a good two years ago. extraordinary, professional,

courteous, but also working inside aleppo, terrible communication issues. we exchanged skype messages, that's all we could do. courageous in the fact he was there. the things we needed to work out and just generally seemed to be great at his profess. >> yeah, yeah, obviously in those situations, everyone is so focused on their work, but you have these interactions that become very meaningful. let me ask you, the psychology of fear, from my van vantage point has made a use of fear. we saw tweets sent out for the world to see as a warning to americans. you've covered a lot of conflicts. i've covered a lot of conflicts. is this different what you're seeinging there? >> i've never really encountered such a volume of horrifying,

disgusting videos. when they started out, they weren't shy of the fact they were brutal, but it wasn't what you get know. it's hard to keep up with the number of grotesque things they post on their twitter feet. i did a story about potentially 1700 iraqi recruits near te krit, that base is overrun and they were herded off to mass execution. some shot in a field, others to a river, shot repeatedly in the head, single shot, dumped in the river. one of the most horrific things i've seen on video. >> and you know, we have to make constant decisions as news organizations, what we're going to show, what is appropriate to show. it's a different situation obviously in missouri. you've been there when things got hairy there as well.

i've been struck again from my prism, watching on tv, it looked like a complete war zone, like some of the things we've seen in the maes. is it like that in person, jake, and how do you give people the whole picture as opposed just a slice of the pie. how do you balance that? >> it's difficult to and it has looked like that at times during this crisis here in ferguson. it has not in the last few days. the police are employing a different tactic. they're no longer doing the massive show of force militarized vehicles, guns aimed at protesters who are peacefully protesting. they're not doing that anymore. monday night, they did that, but they have not since they've done a much more crowd friendly strategy, which is stretching out and breaking up into smaller

groups of five of six. it's obviously not a war, but there is a fog. the fog of protest, i suppose, where you might have one scene going on in one place and then three blocks away, a completely different scene. it's difficult to try to convey. >> they may be not -- the children are particularly vulnerable to stress and fear. what are you seeing there? >> it is clearly something that the children of ferguson know about. i spoke with the father of a 16-year-old who saw the incident itself. and the father was expressing concern about his son. obviously, michael brown's body lay on the street on canfield avenue for four or so hours, so a lot of people who just lived in that area on a saturday, which included a lot of

children, saw his dead body and i think obviously that has an effect. we've seen children out at the protests. usually, by the time the protests get going in a major way, it's dark and most children are gone. but some stick around. some parents take their children on the marches. it is summer. and school has been canceled for the time being. >> do you have conversations with your own kids, jake? they ask where dad is and you tell them you're covering a story like this? how much do you tell your kids about what you're seeing there? >> my kids are 4 and 6. they're named after a civil rights hero and a suffragist, so we will let them know about human rights struggles, but right now, we're pretty vague and pretty sheltering when it comes to trying to keep ugly facts of humanity from their

ears. it's the kind of thing where when i was covering the bp oil spill, my wife would say things to my daughter along the lines of that i was going down to help clean up the dirty beach. we're just trying to keep them as blissfully ignorant as we can until we have to let them know and we will. but no, they don't know what's going on in ferguson and it's such a complicated story, also. i don't know that a 4-year-old and a 6-year-old can really handle it right now. >> yeah. my kids are 9, 7 and 5 and the questions, they start to come. i was just curious. nick, let me ask you in closing, you know, we cover a lot of different stories. military guys are risk their lives to defend a country. doctors like dr. brantly was out there in west africa to help save people. journalists tell stories that are are important, but you risk your lives. when you talk to your family and

they ask you, we're worried about you, you're risk your life to cover this story, without being too personal i guess, i don't want to put you on the spot, how do you convince them it's the right thing to do? >> well, i'm kind of lucky, i have a very supportive parents and don't have any children to be concerned about. when i start ed doing this abou 12 years ago, i worked for a newspaper so i could go off to chechnya for a week or so and i came back and my name popped up in a newmspaper or "dateline." when your job is to go to the worst place and then put that on television. but they are on the whole, extraordinarily supportive. the most important thing is coming back to tell the story, so we all take huge amount of care as far as we can in terms of safety, but i think there's also the degree where people get used to it. my father once said to me when are you going to stop being

target practice for the taliban, but now, i think this is a bit of humor than anything else. it must be pretty hard for them to watch some of the stuff we put on there. >> thanks both of you for joining us. we want to shift gears now to the remarkable recovery, i've been following the story for a long time. the remarkable recovery of both ebo ebola patients. i'm going to tell you what's going to happen to them next.

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capella university is the most direct path to what's next, because our competency-based curriculum gives you what you need to move forward to your point "c". capella university. start your journey at capella.edu. the thus has been full of grim headlines, but late this week, we saw something to make us all smile. two americans with ebola were now found to be fully recovered. at emory in atlanta where i happen to be on staff, there were a lot of questions to answer and it was quite a moment when one of the patients, dr. brantly, walked in. it was a day some thought might

never come. a day full of lots of smiles and gratitude. >> today is a -- >> dr. brantly, it's the first time we're seeing him look like this. vibrant, healthy, a far cry from the hooded figure who staggered into the hospital a little over three weeks ago. >> this will be standard, yes. >> just one day before the arrival, dr. bruce ribner showed me the protective suits he and the staff would have to wear every time they saw brantly. today, a completely different p picture ch in fact, it wasn't so much as what we heard as what we saw. brantly, who was in isolation just the day before, now holding hands with his wife and hugging every one of the 26-member team he credits with saving his life. he moufed to africa last fall with his family for a two-year

medical mission. it had nothing to do with ebola, but that all changed in the spring. we were in west africa as the outbreak began to heat up. >> these are tough conditions. >> brantly made the decision to fly his family home to the united states on july 20th and then, just three days later -- >> i woke up feeling under the weather. and then my life took an unexpected turn. as i was diagnosed with ebola virus disease. >> there's no way to know exactly why he's done so well. a lot of the tension was due to a story that we first reported about an experimental drug that he received. the first of three doses given to brantly as he lay near death in liberia. never been had it been given to a human being, but what happened next was described as miraculous. within an hour, his doctors said he made a dramatic turn around. by the next morning, he was able to stand up on his own and take a shower. coincidence or not?

doctors are still being cautious. >> frankly, we do not know whether it helped them, made no difference or even theoretically, delayed their recovery. >> nancy writebol also received the drug. at one point, according to the missionary group they worked for, friends and family expected to plan a funeral. we learned nancy is also ebola free. >> my dear friend, nancy, want ed me to share her gratitude for all of the prayers on her behalf. as she walked out of her ice laigs room, all she could say was to god be the glory. >> you know, a lot of people have asked could they still be contagious and i think those hugs, they kind of make the point. no, they're not. doctors say there's a possibility of transmitting ebola through sexual contact for the next several week, but they've been counseled on that

and they say the risk is mini l minimal. there's no reason to think these patients can't be as healthy as ever in the future. it's interesting to note they are now immune to this particular strain of ebola that's causing the outbreak in case they choose to go back to africa, they'd be pretty safe from possible reinfection. up next, what's really going on inside your head. this is fascinating. i got a chance to chat with the host of nat geo's brain games and let me tell you, it blew my mind.

how often do you stop and think, wait a minute, my mind must be playing tricks on me? i got a chance to talk with the

host of brain games who showed me what's really going on inside our heads. i am really excited to have you on the program. i watch the show. a lot of people watch the show i know. it's fascinating and before we get into some of the specifics, how did you get interested in this? >> i've always been a really curious person, i love science, technology, the human capacity to transcend boundaries. we do that with the brain, the most complicated object in the universe. at the same time, we shouldn't get cocky because the brain does have these ficked limitations. we create these interactive experiments. these games people at home can actually play along with that highlight your misperceptions of reality and i think that makes you feel a sense of humility, wonder, curiosity. learn by doing, you know. >> it's mind blowing, literally. >> mind blowing. exactly. let's take a look at the couple

of them. >> the limb limb taxs of our brain, stare at that dot and focus on that dot. ignore the rest of the image. keep focusing on the dot. what's happening is okay, did you notice that for a second, that picture was a colored picture. so, what happened -- so, what was happening when you're staring at this dot, we're -- your color receptors, then when the actual image becomes a normal black and white image, your brain is fill ng those colors. that was your brain rendering that a color image. >> we did nothing to that photograph. it was a black and white photograph. one more example. just take a look. stare at the dot again. that's tiring your color receptors. keep staring at it.

it looks like a color beach and then before your very eyes, it goes black and white. it was never a color photograph. that was your brain that did the take away there is the reminder that what we call reality, between limited signals you get from your brain i'm sorry, from the world and your brain filling in the blank. with our eyes, we can only perceive low res 2d images. >> filling a lot of that in. ths how we get by and we trust that. >> very much. and we're usually pretty good at it, but what this show is meant to do is highlight the ways in which we miss a step. >> wasn't a color picture. this is something that you guys do a lot of the show. sometimes, brain teasers. maybe you can give us a few and just explain. >> there's a great line that

says to understand is to perceive pattern. tha what it means to be human. >> from an evolutionary standpoint, you wanted to recognize patterns and when something fell out of a pattern because that could be a threat. >> that's why we're so nervous all the time. always afraid, always geing stressed. let me give you an example of a riddle and your brain again is looking quickly for a pattern and for completing that pattern, often erroneously. mary's mother has four daughters. april, may, june and -- >> you want to say july, that's not the answer. mary's mother has four daughters, april, may, june and mary. >> that is very, very smart what you just did. you broke it down, listened to the whole question, but you know that your inclination was to answer and fill in the pattern. you heard april, may, june, well, july comes there, but what was the question?

mary mother has four daughters. you're filling in patterns all the tile. making assumptions about the world that are very quick without looking at the whole picture. >> it's fascinating, it really is. again, this is a glimpse into the brain that many people never get to see. just take this stuff for granted. i'm a fan of yours. >> i'm a fan of yours. >> you got something you're going to do with the dollar bilbil bill? oh, yes. this looks at lag time in your brain's decision to perform a physical action and then telling your body to do it. this is called the bill drop. if you put your finger like t s this, you would think that the minute i decide to let go of the dollar bill, you have plenty of time to clench it and not drop it, but because the lag time, i'm not going to tell you when i let xwo, but you have to pay attention. as soon as i let go, you have to close your fingers. we could do that ten times and every time, it would go through

because by the time you notice me to let go -- >> thought i was faster than that. >> totally. most of us do, but that's one of those funny games. >> stay in touch. come back any time. >> such a pleasure, sanjay. >> it was a lot of fun. you can catch the season finale monday night, 9:00 p.m. there's another part of your body that can also play tricks on you. as one headline put it, why your gut bacteria wants you to eat a cupcake. your 16-year-old daughter studied day and night for her driver's test. secretly inside, you hoped she wouldn't pass. the thought of your baby girl driving around all by herself was...

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ever feel like your stomach has a mind of its own?

more research indicates that may be true. this might creep you out, but even when you're eating alone, you've got company. trillions of bacteria living in your gut helping to digest food and keep your immune system in check. >> what we're finding is the gast row intestinal system may be the gateway to our health. >> all the bacterial cells in our gut outnumber human cells ten to one. in order to survive, they thrive on different nutrients. some prefer sugar, others fat. some even like the healthy stuff like fiber. in order to make sure they get the nutrients they need, all these bacteria can alter our cravings. they can change our taste recept receptors, help release hormones that make us hungry. even hijack the never that connects the stomach to the brain, but we can also change the make up of our gut bacteria. we can change our cravings by changinging our diet and by developing acquired tastes.

so, when it comes to pizza, fries, chocolate, you really don't always want to trust your gut. that's going to wrap it up today, time now to get you back today, time now to get you back to the cnn news room. -- captions by vitac -- www.vitac.com zblnc zblnc zblncht. we are tracking a story coming into cnn just in the last hour or so. a senior administration official tells cnn that president obama is demandinging a review of all federal programs that allow local police to receive surplus military weapons and equipment. the issue of police militarization has been front and center. the nation first saw the police response to the protests in ferguson, missouri. critics say the tactics featuring riot gear and heavy weapons, armored vehicles