will cause social, economic, and ultimately political problems. it has to be dealt with immediately. >> a massive clean-up is underway in miami where local mideast report sargassum is at unprecedented levels. these fixes might only be temporary and it might be time to embrace the inevitable. >> i have seen them make a brick, make a house, make shoes. people are smart. people are finding ways. >> this epidemic is in part believed to be caused by the warming oceans. next, hear the amazing kindness of strangers. the story of a man with no fwam the hundreds who came to help share his grief with him.