Citizen Lab Senior Security Researcher Morgan Marquis-Boire commented on the recent Twitter blocking in Turkey in The Wall Street Journal and the Spanish edition of BBC News.

“Blocking a website throughout a country isn’t difficult, said Marquis-Boire. That’s because all Web traffic ultimately has to travel through the computers of a relatively small number of Internet providers. Marquis-Boire said governments typically order Internet providers to route requests for the website – in this case Twitter – to a dead-end corner of the Web.”