Wikipedia: Jurisdiction and legality of content[modifier]
Publication of information found in Wikipedia may be in violation of the laws of the country or jurisdiction from where you are viewing this information. The Wikipedia database is stored on a server in the State of Florida in the United States of America, and is maintained in reference to the protections afforded under local and federal law. Laws in your country or jurisdiction may not protect or allow the same kinds of speech or distribution. Wikipedia does not encourage the violation of any laws; and cannot be responsible for any violations of such laws, should you link to this domain or use, reproduce, or republish the information contained herein.
In its encyclopedic function, Wikipedia contains millions of articles on a vast array of topics. A relatively small fraction of these topics are frequently censored by educational, governmental, corporate, parental and other filtering schemes. [...] Wikipedia's current policy is to include such content, provided it breaches neither any of our existing policies (especially Neutral point of view) nor the laws of the state of Florida in the United States, where Wikipedia is hosted.
Examples of what might have caused the work to be in the public domain in the United States include lack of proper notice, failure to renew, failure to comply with manufacturing requirements, being a sound recording fixed prior to U.S. protection, and lack of national eligibility, that is, the source nation and the United States did not then have a treaty relationship.