"They should be testing Muzzle women in the US who wear burkas. They are completely in the dark."
Your post got me to thinking about the Ursuline nuns that taught me as a child? They were covered from head to toe, but at least their face showed. On boiling hot days (in a New Orleans classroom), I wonder how they could stand it what with their multiple layers and stiffly starched wimple. The sun had no way of piercing those outfits, but maybe the exposed face and hands were enough. Interestingly, several who taught me are still living (in their 80's) and now teaching pre-school. One that taught me music and French, recently died at 97. Maybe they took tablespoons of cod liver oil to compensate. YUCK!