In 2000, Iranian women accounted for 56% of students enrolled in the natural sciences. No matter how you cut that, /that's not nursing and teaching/.
And isn't it a bit of a sign of discrimination to merely assume off-hand that another culture's definition of "science and engineering" isn't as "rigorous" as ours, even if we seem to be gearing up for a clash with them? Instead of pooh-poohing their efforts, it seems more appropriate to be astonished by their capabilities in as hostile a cultural paradigm as they live in.