This article was produced by National Geographic Traveller (UK). In the mountainous jungles of Hoa Binh province, a dark leaf glistens on a pale tree. “Heartbreak grass. Touch it, and you could die,” ...

A Thai court approved on Monday the extradition of a leading hill tribe activist to Vietnam, where he faces 10 years in jail over rare deadly attacks on police headquarters.

It's a tradition that's been part of the hill tribe's culture for longer than anyone cares to guess. The ritual brings great pride and identity to the Hmong, who ended their nomadic wanderings ...