In 1996, 8 female athletes tested XXY. All were allowed to continue competing. The cases were not made public. Semenya's was leaked to the press.

Reuter's summary
http://www.reuters.com/article/sport...dChannel=11611

Interesting historical document
http://ai.eecs.umich.edu/people/conw...erTesting.html



Oh, and Mr. Silver, take Karen (Tuckerville)'s advice. Read the articles. She took the time to find them for you, take the time to read them. You may find them enlightening.