In all Olympics there is controversy surrounding failed drug testing after athletes blood is checked. However, one thing you may not have thought about whilst watching the Olympics this summer is blood testing to check for gender also. What you might think is a very easy question, but verifying an athletes gender is not always so straight forward, as time magazine illustrates:
This is a very tricky area of the games and one that we need to tread lightly in in the future, as suggested below:
Good luck IOC!