Hmm, hard to say. For one thing, I don't think I necessarily have a single ideology, as they are usually defined -- I usually take things on a more case-by-case basis. So what I thought when I was 12 doesn't have too much direct bearing on what I think about Iraq.
But that, itself, has been an ongoing theme -- I am perpetually skeptical and perpetually unwilling to go along with the group simply because it's the group.
When I say experience I mean things like working with the very poor, mostly immigrant deaf population in Los Angeles. It didn't change my thinking as much as deepened my understanding. For example, I already thought that there should be a safety net and that it wasn't as simple as "pull yourself up by your bootstraps," but that gave me a lot of insight as to what the difficulties are, exactly. The choice between expensive childcare that eats up all of your earnings, inexpensive childcare that has numerous problems, up to and including sexual abuse of your child, or staying home and raising your child on the minute amounts provided by welfare. Insight into just what raising your child on minute amounts means. Insight into the loss of hope, and what that means.
I guess that's another ongoing theme, a distrust of simplistic answers and a desire for nuance.
Meanwhile, I may have come up with a book, though I haven't read it -- Paul Krugman is consistently one of my favorite Op-Ed columnists.
"The Great Unraveling: Losing Our Way in the New Century"