Twitter has announced that it now has the technology to selectively block tweets on a country by country basis.In its blog, Twitter said it could "reactively withhold content from users in a specific country". http://www.bbc.co.uk/news/world-us-canada-16753729 http://blog.twitter.com/2012/01/tweets-still-must-flow.html Buona lettura! Luca Belli Doctorant en Droit PublicCERSA,Université Panthéon-AssasSorbonne University