Are we bound not to interfere with slavery or the restriction of women or racial discrimination?

This is typical of a certain kind of cultural and ethical relativism. Everything goes and nothing can be done about it. If a group of people practices clitoridectomy, we have to leave them alone and let them mutilate their daughters.

Here's a quote from a recent story about Afganistan:

In June, three men in the village of Meerwala accused an 11-year-old boy of an affair with their 30-year-old sister. As punishment for the boy's supposed offense, a tribal council decreed that the men should gang-rape his sister Mia, a teacher. The sentence was carried out in front of 500 witnesses. Authorities later determined that the three men had invented the accusation to cover up their own rape and sodomy of the boy. [Newsweek, August 5, 2002, p. 36].

If cultural or ethical relativism implies that we are to tolerate and refrain from interfering with this kind of 'justice,' then it is completely unacceptable. I'm sorry, but I don't buy it.