On this week's South Asia Wired, the discovery of a shocking video sparks fresh tensions between Sri Lanka's government army and the Tamils, and we set off on an arduous  trek into Bhutan with a very special (and royal) travel guide.

Listen to this week's programme here (or click here)

Shocking Sri Lanka video: Time for UN to act?
Pressure is building on the Sri Lanka government to investigate war crimes allegedly committed by its military against captured Tamil rebels two years ago. A recently discovered video purportedly shows Sri Lankan army soldiers executing surrendering Tamil rebels. The video has led to calls for a full UN-led investigation.

A queen's trek
The tiny Himalayan kingdom of Bhutan is famously known for its policy of gross national happiness. It's also sometimes called the last Shangri La.

However, Bhutan - like anywhere else in the world - is not free of the problem of domestic violence.

Queen Sangay Choden Wangchuk is one of four sisters married to King Jigme Singye. She recently set out on an arduous trek in the rural hinterland to talk to her people and try to make a difference in the problem of domestic violence.

Reporter Stephanie Guyer-Stevens of Outer Voices went along and you can hear her report on this week's programme.