IP blacklisting is not as appealing to governments as DNS blocking because of virtual hosts. The collateral damage from breaking DNS is bad enough. IP blocking

IP blacklisting is not as appealing to governments as DNS blocking because of virtual hosts. The collateral damage from breaking DNS is bad enough. IP blocking runs the risk of breaking essential economic services. It is possible for governments to invest in session interruption like what China does is possible. Layering trustworthy DNS, ubiquitous SSL and Tor