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Stock prices opened the second quarter with another sharp decline April 2 as investors grew increasingly worried about the rising U.S. trade dispute with China and a flurry of problems hammering the nation’s marquee technology firms.

U.S. lawmakers have applied a light touch in regulating robot cars. At the national level, the Trump administration has proclaimed that driverless-car guidelines should be “entirely voluntary” for automakers, and bills pending in Congress would clear the way to putting tens of thousands of autonomous cars on the road — orders of magnitude more than the few hundred in the country today — before federal safety regulations are set.

President Donald Trump charged March 31 that The Washington Post, owned by billionaire Jeff Bezos, should register as a lobbyist, insinuating that it abetted his other company, Amazon, in pulling off a U.S. Postal Service “scam” to deliver its packages at a loss.

UPS Inc. has started operating five cargo flights a week out of San Bernardino International Airport, officials announced March 26.

Enough already. That seemed to be the rallying cry for some truckers who got the chance on March 27 to vent about port congestion directly to the Virginia Port Authority Board of Commissioners.

On March 27, the Georgia Ports Authority held a ceremonial groundbreaking for the $126.7 million Mason Mega Rail Terminal, a sprawling rail yard GPA Executive Director Griff Lynch said will provide better connections to the main CSX and Norfolk Southern rail networks as well as provide direct access to coveted Midwestern cities such as St. Louis and Chicago.

Days after a fatal self-driving-car collision in Arizona, six makers of driverless vehicles came to San Francisco on March 22 to demonstrate their technology — and emphasize its safety features — to city leaders and public-safety officers.

It’s time to raise the federal gas tax to help fix Michigan’s ravaged roads, Michigan Gov. Rick Snyder said March 20.

Guadalupe Road in south Victoria County, Texas, was brand new in August 2016 after the county spent $200,000 to repave it for the first time in decades. But in the last few weeks, it began to crumble and crack, forcing county crews to patch up the deteriorating surface.

Shipping containers are piling up on the Portland, Maine, waterfront at a record pace as the state invests millions of dollars into its largest port to encourage the state’s growing trade links to Europe and the North Atlantic region.