High-energy lasers can burn drones in the sky like a blowtorch. But they can be stymied by weather, and making them at scale will be a challenge.

Beyond its effects on oil and gas, the unfolding war in the Middle East is roiling shipping and airfreight, threatening the availability of a vast range of goods.

The Japanese company’s retreat echoes moves by other traditional carmakers as the industry divides between electric vehicle haves and have-nots.

The lopsided vote to approve the measure was a rare bit of election-year bipartisanship on a major affordability issue, but G.O.P. disputes and President Trump’s disinterest have left its fate uncertain.

After surging about 10 percent on Thursday, oil prices had little reaction to the decision by President Trump to waive sanctions on the sale of some Russian crude.

India relies on huge quantities of cooking gas that is normally shipped from the Persian Gulf.

By suing Republican states and making sharp reversals in old cases, the Trump administration is using courts to fast-track major shifts in policy.

The Trump administration is expected to begin a trade investigation into whether dozens of countries have policies to combat forced labor.

The Federal Reserve and other financial regulators will soon release proposals to loosen some planned rules on how much capital banks must hold in reserve to mitigate risks.