The Great Firewall of China
The Great Firewall of China is a national effort to censor internet content from those within the country’s borders. It is an indicator of Chinese citizens lack of freedom of speech that their access to sites like Wikipedia and the Wall Street Journal is blocked.
The Great Wall didn’t work for long and the Great Firewall will have an even shorter life. I do like the way the name explains concisely what it is. BTW Firewall is a Portmanteau.