Cuban blogger Yoani Sánchez has been denied permission to leave the island to visit Brazil. Last month, Sanchez formally appealed to the Brazilian President Dilma Rousseff to enter the country so that she could attend the screening of a documentary about press freedom in Cuba and Honduras in which she features. The blogger tweeted that this was the 19th time she has been denied the right to enter and leave the country. Migration rules that require Cubans to receive government permission to travel have prevented Sánchez from leaving the country since 2004.