[foldr]

It's a tiny minority of Muslim women who cover their faces, just for the record. (I assume a head scarf wouldn't interfere.)

[bobthedino]

I'm curious: can you suggest a source for this statistic?

[foldr]

It's really not a controversial point. I don't know how one would get precise statistics on it, but see e.g. the Wikipedia article:

https://en.m.wikipedia.org/wiki/Niqāb