What is the fine-grained topic of the following text: By: Claire Bernish / (The Free Thought Project) On Saturday, the United States ceded oversight of one of the Internet’s most basic and fundamental functions — the so-called “root zone,” which governs new domain names and addresses — handing it over to a small non-profit group by allowing a 47-year contract to expire. Only return the topic.
The United States ceding oversight of the Internet's "root zone" to a non-profit group.