this is an area of specialization for dr. craig downs, and what he is learning is troubling. >> for example, imidacloprid can affect crab larvae as s low as 5050 parts per quadrillion. it affects ththeir mitochondria at this level, so that it's a mitochondrial poison. it can affect their muscles. if the mitochondriaa are dadamaged in e muscles, it can cauause paralys. it also causes immune suppression in these crabs. meaning that they are much more susceptptible to bacterial infections and fungal infections when co-exposeded with imidacloprid.. >> craig downs also studies the impact of imidacloprid on sea urchins. >> neonicotinoids cause dna damage in sea urchin sperm as lowow as 500 parts per trillio. it causes s developmental abnormalities as low as 5 parts per trillion. it means that they're a mutagen. um, it meanss there's a d direct t threat to e rreproduductive fitntness of the entire biodiversity of marine environments. if you have damage to sperm or if you have damage to eggs,s, the next generation will not be as fit or mig

behind the wheel is dr. craigt two years the team deployed 14 wildfires. >> including the rag fire which burned 8000 acres last summer. the team travels to real events and sets experimental ones all to boost their understanding of weather impacts on behavior. >> we can scan the fire region with the radar and retrieve the wind speeds and the actually rate of the spread of the fire. >> flee stocked this truck carries a mobile doppler radar unit to collect 3-d samples of the wind and scanning temperature and humidity. on this may afternoon there was no fire to study, the team drove 15 minutes to sample brush at a specific spot. >> already getting grass fires. >> oh, yeah. >> for about a month. >> this is the site on blackberry hill and call fire washes it closely. >> i'm standing up here surrounded by a lot of brush. right here we have dead material and next to it we have new growth. over june, july and august this will dry out rapidly so even the strongest el nino on record cannot wipe out the peek of our fire seaso

behind the wheel is dr. craiglemmons, a professor in the meteorology department. >> deployed over 14 wildfires in the state of california. >> including a rag fire that burned 8000 acres. the team travels to real events and has experimental ones to understand the weather impacts on fire behavior. >> we can scan the fire region with the lidar and retrieve the wind speeds and actually the rate of the spread of the fire. >> fully stocked this truck has a mobile doppler unit to have 3d samples of the wind and a microwave profile for temperature and humidity. on this may afternoon, there was no fire to study. instead the team drove 15 minutes from last gatos. >> this is a site and cal fire watches it. >> i am in the mountains surrounded by brush. right here we have dead material and next to it we have new growth. over june, july and august, this will dry out rapidly so the strongest el niÑo can't wipe out the peak of the fire season. >> those of the basic measurements we need. >> chris camano is a graduate research assi

dr. carson is essentially going to be gauging the room and also gauging paul ryan's mood before trump goes in? >> reporter: that's the plan, craig. you'll remember that dr. ben carson was one of the first to come out and endorse trump. he dropped out in early march and several days later threw his full weight behind the candidate saying that he had buried the hatchet and it was time for unity. dr. ben carson made it his mission to be a unifier and peacemaker on donald trump's behalf. so it's not too surprising that he would want to help out in this meeting between ryan and trump. but in fact a source close to the trump campaign confirmed that dr. ben carson did this on his own. he wasn't requested to do this by the trump campaign. and now he wants to get in there and he wants to help, as he has. on our channels, on our shows and elsewhere on other cable channels to try to be a unifier and peacemaker. mr. trump himself said he has no idea what the meeting will be about and paul ryan says that he doesn't know mr. trump, he wants to get to know him. so dr. ben carson wants to go in there beforehand and try to warm the room, as you

dr. no. >> just days after speculation about who might be the next bond, actor daniel craig has reportedlyold studio bosses at mgm that he's done playing the martini sipping, heineken drinking lately super spy. despite a final offer of get this, $99 million for two more movies. that's nearly ic made in the last four bond films combined. >> 99 mil? >> maybe he just wanted that extra $1 million. >> now, in his defense, craig has been plagued with a knee injury that he suffered during filming a fight scene for the last bond film "specter," and he faupsly told an interviewer last year that he would rather slash his wrists than do another bond film >> so he's saying there's a chance. >> $99 million. >> man. >> i'll do it for way less than $99 million. the first female bond. >> that would be hot. >> i think so. >> next comedian louis c.k. uses his celebrity to shine the spotlight on a little known women's issue. >> he squared off against kate bolduan and jonathon capehart for power players week on jeopardy. he won $50,000 for the fistula foundation. >> what is f-i-s -- >> i was starting to write

craig melvin is up next here on msnbc. i can dr lightly, just like i would with a real pencil.ic artist for over 30 years. i do the composite sketches which are the bad guy sketches. you need good resolution, powerful processor because the computer has to start thinking as fast as my brain does. i do this because i want my artwork to help people. wrely on the us postal service? because when they ship with us, their business becomes our business. that's why we make more e-commerce deliveries to homes than anyone else in the country. here, there, everywhere. united states postal service priority: you is better for your skin than wearing no makeup at all? neutrogena® cosmetics. with vitamins and antioxidants. now with foundations in shades for more skin tones. >>> good wednesday, everyone. i'm craig melvin. happening now on "msnbc live." two big stories on both sides of the 2016 race. donald trump will hold that f e face-to-face about foreign policy, the presumptive nominee will sit down with form earp secretary of state republican presidential adviser henry kissinger. the meeting

craig explains. >> reporter: a new study suggests that medical errors are now the third leading cause of death in the united states behind heart disease and cancer. >> the impact on patients is significant. >> reporter: drmartin mccarey says it leads to 250,000 deaths a year. >> by medical error we're talking about medication dosing airsors and preventable complications. >> reporter: they say most medical errors aren't due to bad doctors, they say systemwide failures are responsible. doctors urge patients be care. ask about any medication prescribed for you and any alternative treatment options. read up on complications, and get a second opinion. >> doctors have been delivering ways to deliver care more safely. they're up against tremendous barriers. >> reporter: obstacles include underfunded research and lack of hospital resources. kenneth craig, cbs news, new york. >>> coming up on the "cbs morning news," the investigation into the death of prince. a report says the singer was struggling with an addiction to opioids. >>> and rewriting history. questions surrounding the iconic iwo jima photo. s. and i'm doing just fine. claritin provides 24-hour relief of symptoms that can be t

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