China hit back by putting export curbs on some rare earth elements, vital for U.S. manufacturers of weapons and electronic consumer goods, and raising tariffs on U.S. goods to 125%.

Yu Zidi of China is only 12 years old and will race at the world swimming championships later this month in Singapore. That's amazing. But her age is only part of the picture.

Faster than McIntosh at 12 The 400 IM is dominated by 18-year-old Canadian Summer McIntosh, who holds the world record of 4:23.65 and the 200 IM mark of 2:05.70. She's a generational talent, the ...

Yu Zidi of China is only 12 years old and will race at the world swimming championships later this month in Singapore. That's amazing. But her age is only part of the picture.