In case you missed this recent article from the New York Times. The state of Alabama is changing its laws regarding allowing yoga practice in schools. Instead of quelling the debate, it will only highlight the issue of whether yoga can be sanitized from its Hindu spiritual roots and worldview.
There are several posts on this website addressing the issue of detaching the spiritual dynamics of yoga from its physical disciplines from both a Hindu and Christian perspective. Please see: “Why ‘Christian Yoga'” a post about Dr. Candy Gunther Brown’s article in Psychology Today. Also, Rajiv Malhotra’s: “A Hindu View of ‘Christian Yoga'” at Huffington Post.