I was wondering, too. When I ran into her year and a half ago and we were discussing 9/11 she said "I'm an American, too!" I wondered if that meant she had dual citizenship or just that she'd been living here so long that she considered herself one regardless. I have a number of friends who have dual citizenship with the UK, Canada and Peru. One friend was born to Irish parents in Germany during WWII, but her father was born in NY to Irish citizens. No one has ever quite figured out if she had maybe triple citizenship.
Funny about her listening to talk radio! I've been meaning to mention (and I think this is innonuous PC) that there is some talk radio show here in LA (don't recall the station) that has a nightly show on issues concerning just Calfornia. They open every show with playing a few verses of Joni's song "California." Kakki