blackstock, an msnbc medical contributor. dr. blackstock, i would like to start with you.ut the discovery of these new chemicals. should residents of east palestine and the surrounding areas be concerned at this moment? >> thank you so much for having me on today. so, you know, i you this it's important for people to realize that the immediate threat was that these chemicals would come bust and cause a fire, but now, we are concerned about the more long-term threat. we know that several of these chemicals are car sin jens. there is one that when it come busts can produce hydrogen chloride and another gas that is quite toxic. and it can end up causing rare types of liver cancer, blood cancers, and lung cancers. so, i think that, you know, those residents are quite right in that we are concerned about what's going to happen in the long-term, that they need to be aware of the symptoms that they're having right now that you mentioned, so, skin, eyes, lung irritation, but also more longer term, some other more concerning symptoms that could be linked to cancers further down the