I think we are looking at it from the wrong point of view just as conkers became outlawed at some schools because of a fear of accidents, the Burkha should be banned on Health and Safety Grounds.
We already have evidence it is dangerous, if this woman had not worn a burkha she would probably be alive today.(Barring acts of god/allah)
http://www.dailymail.co.uk/news/worl...-accident.html