David Bollier - It is a sign of the predatory nature of markets today that a tradition that goes back 4,500 years now needs to affirmatively defend itself as a common legacy of humankind. Yes, the latest endangered resource is…. yoga. Yoga was developed in India as a physical and spiritual practice for everyone. The breathing known as pranayama is perhaps the most elemental aspect of human existence. But wouldn’t you know it…. all sorts of scheming entrepreneurs now want to convert yoga...