In a very interesting webcast, the FINRA staff discusses how FINRA rules are made and reviewed.  See http://www.finra.org/industry/podcasts/how-finra-rules-get-made-and-reviewed.  Although it will not reach the level of Schoolhouse Rock (as the FINRA staff seemingly hopes it will), it is an excellent discussion of the process, and should be considered by all those in the securities industry, or, at the very least, those regulated by FINRA.