President Trump announced plans to roll back federal fuel efficiency standards for new cars and light trucks, a move that would reverse efforts to promote battery-powered vehicles and reduce greenhouse gas emissions. He argued the policy would save Americans billions and lower the cost of new vehicles, while automakers welcomed the flexibility to sell more profitable pickups and sport utility vehicles. Environmental groups criticized the decision, and some carmakers expressed concerns about shifting regulations after investing heavily in electric vehicles. Meanwhile, General Motors' chief executive said the company would continue developing cleaner engines regardless of federal requirements.

In other news, the military had contingency plans for handling survivors of strikes on suspected drug-smuggling boats, and private employers reported a decline in jobs, hinting at a possible economic slowdown. Millions are using artificial intelligence chatbots for health advice, raising concerns about privacy and accuracy. Elsewhere, Dick Van Dyke shared his secrets to longevity as he approaches his 100th birthday.