At last count, China held slightly more than $1 trillion in US Treasury securities. One fear has been that, should China and the United States engage in an economic war — as they clearly are now — those dollars could become a weapon against us. The Chinese would sell dollars in foreign exchange markets, raising US interest rates and perhaps ...

China’s tech giants have upended the country’s payments system and promise to shake up its consumer-banking sector. The rest of the region won’t be so easy. Asia is quickly becoming next battlefront for Alibaba Group Holding Ltd.’s Ant Financial and Tencent Holdings Ltd.’s WeChat Pay, after both secured licenses to set up online-only banks in Hong Kong this month. Singapore’s ...

Florida this month became the latest state to allow teachers to carry guns at school — even though there is no evidence to suggest this can reduce school violence, and ample reason to fear the unintended consequences. The new law coincides with the release of the Federal Bureau of Investigation’s most recent report on active shooters — the armed and ...