Simply put, women are treated as second-class citizens in most Muslim-majority nations. And this is not an anomaly of Islam: it fully follows from authoritative Islamic tradition. The example of Muhammad is paramount in this regard, and full justification for the poor treatment of women is found in all the main texts: the Koran, the hadith, and the sira.
But I have detailed all this elsewhere. See here for example:
www.billmuehlenberg.com/2006/11/02/islam-and-women/www.billmuehlenberg.com/2008/02/22/islam-and-women-2/
And it does not take a Westerner to point all this out. Many within Islam are aware of the problems, and many former Muslims are speaking against this. One such former Muslim is Ibn Warraq. He has written extensively on this particular issue, and the dangers of Islam in general.