"The Real God"

     I was helping a friend move some furniture in her house today and we managed to get on the subject of the World Trade Center and 9/11 and about how I was trying to talk to my young daughter about it.  She's 8 years old.  I explained to my friend that I'd told my daughter that some people took over some planes filled with people and crashed them into buildings full of people because they believed that god wanted them to.  My friend promptly suggested that I let my daughter know that they didn't believe in "the real God".  I paused ever so briefly before turning my attention back to the work at hand and changed the subject.  Now...

    I'm usually one who will speak my mind without worrying about it, however, in this case, it was time to keep my mouth shut.  This is a woman I've known for almost 30 years and she has, for that entire time, been a devout Christian.  Secondly, she is rather close to me and is sort of a mother figure to me as she is about 20 years older.  It took a great deal of strength for me to bite my tongue and NOT say what was on my mind at that time until I realized, rather quickly, that it would turn into both of us talking to brick walls, in essence, because there was no alternative way for that conversation to go.  She is unchanging in her belief, as am I, therefore it would have been a useless argument.

    So what do I do now?  Her comment kind of fired me up, but I didn't say anything.  Was that the wrong choice?  How do you all deal with things like this when everything in you wants to speak out, but you know it'll end badly?  Have you bottled up your anger and then you get home and your alone and just want to yell?  I'm starting to rant here so I'll close it up for now.  Thoughts?