The ACLU has a really good animation up about privacy and pizza delivery. (No, really). It's not directed at anything specific, just privacy in general. It's both hilarious and terrifying -- watch it yourself and send it to your friends. They'll get the point, and they'll be more willing to listen the next time.
I am not a lawyer, and nothing on this site should be taken as legal advice. this site is run on custom blog software and is being actively developed. Please be forgiving of errors.
This website is an Amazon affiliate and will receive financial compensation for products purchased from Amazon through links on this site.