we want to dig deeper now on these tariffs and their impact with roben farzad. he's a business journalist and host of npr's full disclosure. roben, thanks so much for being with us this afternoon on these 25% tariffs. why do you think trump is specifically targeting steel and aluminum? and how are consumers going to feel the impact of this? >> i think. >> for starters, this is about. punching china in the nose. the great big panda. if you look at what china has done over the past 30 or 40 years in terms of ramping up steel production, where the united states was dominant in the middle of the 20th century, and big steel and pittsburgh and all the various things that came out of that, including detroit and the various industries that could take that for granted. that industry has been in kind of an inexorable decline for a long time. china, meanwhile, has been able to bring on all sorts of steel mills, all sorts of more modern steel mills that could take inputs. it can recycle scrap, and it is now a behemoth. and it's become problematic because china has a difficul