Dissident Cuban blogger Yoani Sánchez has appealed to Brazil’s president to help her leave the Caribbean island. A strong critic of the country’s Communist regime, Sánchez has been accused by authorities of conducting a “cyberwar” against the government. Sánchez’s video appeal to Dilma Rousseff follows her invitation to Brazil to attend the screening of a documentary about press freedom in Cuba and Honduras in which she features. The blogger said she did not expect to be able to leave Cuba without “high-level intervention”. Migration rules that require Cubans to receive government permission to travel have prevented Sánchez from leaving the country since 2004.