mr. fritz joins us as an interesting time. while trade wars and automation were not a thing a century and a half ago, these issues very much affect how union pacific and its competitors operate today. weighing in nafta, pulling out of the agreement could not only damage the u.s. economy by raising consumer prices but could hurt many of the 14 million american workers whose jobs depend on trade with canada and mexico including on those in states that will helped elect the president. mr. fritz has a strong horse in this race as he runs a railroad that handles 70% of rail cargo into and out of mexico. as head of the nation's publicly traded railroad as both commodities and finished products, it's difficult to steer clear of the big debates shaping the country whether the effect of fossil fuels on climate change or the mix between public and private investment on the nation's private infrastructure. mr. fritz, the man currently up to the task began at union pacific in 2000 as a vice president in ma