safety of these plants that are handling the hazardous chemicals. that happened just earlier this month. and now you see this, you see a city that has been rocked by this explosion, chris, and it's an explosion because of unsafe perhaps working conditions. that's where this investigation will be going in the coming weeks, an issue china has been dealing with. the factories that produce all the lower cost items that get exported but it often comes with a human toll when there are accidents that end up in lives lost. >> all that damage so far from the actual blast site. as a reminder, you said there are 15 million people living in that city. will, be safe and we'll check back to you. we'll turn now to the 2016 presidential race. donald trump is a real problem for the gop. in a newly-released poll, this is the statement of the iowa caucuses. you'll see that's on the democratic side. you have clinton, a prohibitive frontrunner there, but bernie gaining on the gop side. it's a very different story going on and there are headlines