That possibility alone isn't enough to stop most people, and nor should it be. If you live a life governed by fringe possibilities, you have a stuff life.
I know, I never said that individuals shouldn't use condoms or shouldn't have access to them. I believe everyone should have free access to condoms. I also believe that if you are going to participate in coitus, then you should use a condom. However, I do think that by getting more people to watch research -- you'll have less people wanting to have love. What I am saying seems very silly, but look at whats happening in Japan. Most young people aren't interested in having love anymore because of research and robotic love toys.
Less love/less interest in love = less chance of attaining a loveually transmitted disease