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WASHINGTON — The Trump administration says people would drive more and be exposed to increased risk if their cars get better gas mileage, an argument intended to justify freezing Obama-era toughening of fuel standards.

For the past five years, public firms across the United States have been searching out their supply chains for “conflict minerals” used to fund armed conflicts in Central Africa.

In the most far-reaching effort of its kind, engine maker Cummins Inc. announced it will voluntarily recall 500,000 model-year 2010-15 medium- and heavy-duty trucks to replace a defective catalyst in the emissions control system.

Uber Technologies Inc., a pioneer developer of autonomous trucks that helped the idea gain traction with the industry, announced it has halted its self-driving truck program. Instead, it will focus the technology on its fleet of passenger cars.

Heavy-duty vehicle supplier Hyliion has acquired the battery division of Gentherm Inc., a move intended to consolidate control of its battery technology supply chain that underpins its 6X4HE hybrid-electric axle.

While some in the House were contemplating funding for the next major infrastructure upgrade, others in the Senate were discussing putting man on Mars. Here’s a look at the week ahead for trucking on Capitol Hill.

Security experts had long warned the transportation industry was a major target for cyberattacks — then, a bombshell malware incident levied against international ocean shipper A.P. Moller Maersk publicly laid bare what was at stake.

Automation in the trucking industry is ramping up quickly. But how will the next levels of automation be deployed? Episode 2 of RoadSigns has the answers. Click to listen.