individual." The previous version of the Statement of Principles adopted at the party's first convention in 1972, in contrast, affirmatively endorsed the minarchist perspective with statements such as "Since government has only one legitimate function, the protection of individual rights...." It was agreed that the topic of anarchism would not even be on the table for discussion until a limited government was achieved. During the 2006 Libertarian National Convention delegates deleted a large portion of the very detailed platform. The phrase "Government exists to protect the rights of every individual including life, liberty and property" was added. This development was described as the "Portland Massacre" by its opponents. Some took this as meaning the Dallas Accord was dead. Whether the Dallas Accord remains in effect, and if so whether it should, or what limits it places on the party's public statements or candidates, all remain disputed within the party. The party's Statement of Principles also states support for "the prohibition of the initiation of physical force against others," and "the prohibition of robbery, trespass, fraud, and misrepresentation." The platform states in its Criminal Justice plank, that "[t]he prescribed role of government is to protect the rights of every individual including the right to life, liberty and property." Name and symbols In 1972, "Libertarian Party" was chosen as the party's name, selected over "New Liberty Party". The first official slogan of the Libertarian Party was "There ain't no such thing as a free lunch" (abbreviated "TANSTAAFL"), a phrase popularized by Robert A. Heinlein in his 1966 novel The Moon Is a Harsh Mistress, sometimes dubbed "a manifesto for a libertarian revolution". The slogan of the party is "The Party of Principle". Also in 1972, the "Libersign"—an arrow angling upward through the abbreviation "TANSTAAFL"—was adopted as a party symbol. By the end of the decade, this was replaced with the Lady Liberty until 2015, with the adoption of the "Torch Eagle" logo. In the 1990s, several state Libertarian parties adopted the Liberty Penguin ("LP") as their official mascot. Another mascot is the Libertarian porcupine, an icon that was originally designed by Kevin Breen in March 2006 and inspired by the logo of the Free State Project (FSP). Structure and composition The Libertarian Party is democratically governed by its members, with state affiliate parties each holding annual or biennial conventions at which delegates are elected to attend the party's biennial national convention. National