Risk for contracting/transmitting HIV/AIDS should not be linked in any way to someone's decision about whether or not to be circumcised. There just shouldn't be any connection there whatever. If someone is thinking along those lines, it means that they are thinking about having unprotected sex with multiple partners. People should not be encouraged in any way to do this. Anyone who sponsors such a study and allows it to be used as a part of trying to promote the practice of circumcision is behaving very irresponsibly. If people are going to consider circumcision as an option, they should be doing it for other reasons. HIV/AIDS should not be one of them.