"The U.S. already flunked the test and that should be a wakeup call," a former senior U.S. State Department official told Newsweek.

Of course, trouble at the 508-mile (817 km) shared border is nothing new. For over a century, Thailand and Cambodia have contested sovereignty at various undemarcated points in the thick jungle punctuated with culturally-significant temples albeit with scant strategic or economic value.

By Shoon Naing SURIN, Thailand (Reuters) -Six-year-old Sunisa Chanprakhon was looking forward to running in her school sports day in their Thai border village on Thursday when explosions shattered the morning calm.

In addition to telling time, smartwatches can track your steps, heart rate, blood pressure and sleeping patterns. Now, a smartwatch has helped search and rescue teams locate a small plane after it crashed into the dense forests near West Yellowstone, Montana. Here’s what else you need to know to get up to speed and on with your day.