Mexican tariffs start Monday, and businesses are reeling
Plus: Uber’s new helicopter service and the economic costs of modern racial segregation.
Aerial view of cargo trucks lining up to cross to the United States near the US-Mexico border at Otay Mesa crossing port in Tijuana, Baja California state, Mexico, on April 4, 2019. US President Donald Trump is expected to visit a section of the border fence in Calexico during his tour to California on Friday.