http://www.carthagepress.com/news/x394115394/Residents-seek-changes-to-pitbull-ordinance
"Smith and Wheeler pointed out that poodles and other smaller breeds of dogs bite people more often than pit bulls, but pit bulls are singled out only because their bites do more damage."
http://www.boston.com/yourtown/news/malden/2012/04/malden_city_council_enacts_pit.html