. >> a explosions arcemmis chemical blast in the aftermath of hurricane harvey next summer putus noxhe air. they recognized it more than 30 miles away. hydrogen peroxide. >> i smell it everywhere. >> plant accidents are only too familiar in houston, theworld's chemical et manufacturing market. in 2016 an explosion at a different hydrogen peroxide plant there killed one worker. >> petroleum-based solvent is aiammable and kind of like a bombng to happen. at their company, solugen, han and chuck, his friends call him se the same process to make hydrogen peroxide, the same stuff we use to clean cuts and untertops. he learned pancreatic cancer cells contained hydrogen peroxide and it aids in the production of hydrogen peroxide. he won't say how, but he figured out how to create a enzyme that does just that. >> it turned out to be hunt studying ways to makeydgen peroxide with metals like platinum. >> it's liunbelievable. muscle milk, like the from teen powder. >> hunt had been taught thats enzyere weak and unreliable. >> the secret sauce to it all is in this fridge. >> but with machinelear

living in very high downs communities like slums without proper access to health care are sometimes met nox as to health care at all what actually increases your likelihood of contracting disease and sure do we understand at this point how those communities even function how do they address those kind of challenges you know not extremely well for example. one of the issues that. continual motive tension to is the provision of said taishan and one reason i did is that in sub-saharan africa for the past twenty five years which is probably been their most rapid period of economic growth there's been almost no improvement in access to urban set of patients and it's forty percent of the population has access so when you have figures that low the evidence suggests that no one benefits from the provision if you increase from forty to forty two no one benefits because you still have people desiccated in ellie's and you still have feces everywhere and so the sense of the health effects of something like that could be extraordinary and then if you compare it with many african cities are in dire strai