i dont know how that can be classified as circumcision. we only lose the foreskin, they lose the clitoris. thats just plain old genital mutilation. i saw some footage of that on an old Faces of Death video. in the words of Goro, "disgusting".
Agh, I had to stop reading in the middle of the sentence that starts "Knives, razors or even sharp stones are usually used". I can only take so much when it comes to genital mutation imagery.