Trucking can be dangerous job – long, often tedious hours behind the wheel, the unpredictability of the weather and of course, other drivers. And yet, trucking is an essential part of supply chain. 72% of the nation’s freight gets from point A to point B in a truck, according to the American Trucking Associations. Most of those holiday gifts you might be enjoying right now got to you on a truck. So truck drivers are an essential part of our economy. The companies that hire and manage those drivers have started bringing a lot more technology into big rigs, including artificial intelligence and sometimes automation. Marketplace’s Kimberly Adams spoke with Karen Levy, author of “Data Driven: Truckers, Technology, and the New Workplace Surveillance” about how these tools are being used in the industry.