Knives are "arms" and should be protected under the Second Amendment just the same as firearms. The right to own and use pocket knives came under attack, with an attempt to ban the importation of assisted-opening knives, which are the bulk of all pocket knives sold in America today. This was beaten back by grassroots effort and leadership from Knife Rights, among others (formerly United States Knife & Tool Association, http://www.kniferights.org). New Hampshire is promoting a bill to make knife possession unassailable, but to make criminal misuse of a knife a clear-cut crime. That would correctly separate criminal activity from possession of private property, a model that would work well for firearms and all other legal property. Protection is definitely needed for knife owners, knife collectors and those in the knife industry. http://www.knifelawonline.com/what-people-are-saying.html Arizona introduced a bill, the first in a series of national bills sponsored by Knife Rights, to preempt localities from passing a patchwork of knife bans and infringements on any sharp tools, recognizing that knives can be arms as much as any other personal tools protected by the Second Amendment. The Arizona effort, already approved by the powerful state Judiciary committee and a model for other states seeking to protect their rights, needs support, go here: http://bit.ly/Scvp9http://bit.ly/Scvp9.