论美国言论自由的核心特性

无论是政治言论、商业言论、仇恨言论．还是色情言论、猥亵言论、挑衅言论，美国政府和社会皆给予它们尽可能的法律保护，美国言论自由的核心特性就体现为对言论自由的高度保护。美国言论自由高度保护的制度体现为美国宪法第一修正案；高度保护的确立源于英国压制言论自由的历史和美国本土的殖民地历史；高度保护的思想源于布莱克斯通和杰斐逊关于言论自由价值的相关思想；高度保护的基础理论为思想的自由市场理论和自由讨论公共事务论；高度保护的中心原则为内容中立原则。

The Core Properties of Freedom of Speech in the United States

Whether it is political speech, commercial speech, speech or pornography, obscene speech, or fighting words, they are given legal protection as far as possible by the U.S. government and society, thus the core properties of the freedom of speech in the United States is high-level protectiorL The system of high-level protection is the First Amendment of the U. S. Constitution, the reason of high-level protection is the history of British repression of freedom of speech and the colonial history of the United States, the basic theory is Market Place of Idea and Discussion of Public Affairs, and the central principle is content neutrality principle.