While I agree with most of what Mauro says, I'm not sure if glass is really neutral, or if any technology can be said to be. I think to call glass a neutral technology is just a generalization, just like we call glass a solid. And judging whether the glass technology is neutral is far more ambiguous than determining whether the glass is solid. Technology is not inert. It's not a stone; It's a language. Just like a language, we must accept its multiple uses. We can pray; We can lie. Sometimes, we do both at the same time.