Some countries are starting to regulate the use of smart glasses due to privacy concerns. The European Union is studying the potential risks of smart glasses to data protection and some member states have warned about the privacy issues they raise. In the United States, the use of smart glasses is generally still allowed, but it is prohibited in courtrooms in some states and by military personnel while in uniform. These restrictions are related to the ability of smart glasses to record without the knowledge of others. Some event organizers are also starting to ban the use of smart glasses.