Hundreds of barges are stalled on the Mississippi River, clogging the main circulatory system for a farm-belt economy battered by a relentless, record-setting string of snow, rainstorms and flooding.
China could maximize harm on the U.S. economy not just by slashing flows of rare-earth materials, but by curbing supplies of small, powerful magnets that use them.
The revolutionary new drone — part helicopter and part science-fiction aircraft — will begin test deliveries of toothpaste and other household goods starting within months.
The race by Tesla, Samsung and other technology giants to secure supplies of lithium — a key ingredient in batteries for electric vehicles and smartphones — is creating a unique chance for two global mining superpowers to reap more value from their natural resources.