Many of the arguments in this document were honed in discussions on the talk.politics.guns newsgroup and Eugene Volokh's firearmrsreg mailing list and I am grateful to all the participants in those discussions.

The curve fitting applet makes extensive use of Java code written by Bryan Lewis for his Elementary Statistics Applets. My thanks to Mike Huben, John Lott, Daniel Webster, Clayton Cramer, Tim Starr, William Vizard, Dan Black and Terry Austin for comments that have improved this document.

Special thanks to Florenz Plassmann for his thoughtful and extensive comments.

Tim Lambert