It is true that those same techniques can be used for instance to block sites, but in the end, like any of the technology tools, it is a two-edged weapon, and no matter how long governments might try to block information, ultimately the will of the people will be victorious either by using counter-techniques or by developing new tools to make themselves heard. When internet was cut off in all Egypt, some resorted to dial up from some neighboring countries for example and Google provided "Speak 2Tweet" service .