I disagree, but only slightly based on my views. In reality, lying to her would be the "smarter" thing to do so if I had to give advice, it would be to lie, especially if you really like her. If it were me, I would tell her the truth. I hate people who judge and would not want to be with one. I would take the risk and say yes because if she doesn't want to be with you anymore based on that...then who cares. She doesn't like the real you so why would you want to be with her right? That's just the way I look at things. I have nothing to hide and if you don't like it, see ya....
I told my girlfriend a while back and I would probably be using sometime in the future and just like Jaywooly said, it's a winless arguement. You know the facts, she goes by news and media. We argue about it from time to time, but I'm not going to cave, it's who I am and if she doesn't like it, she doesn't have to be with me...