Amnesty International says the Cuban government has increased its harassment of opposition activists.
According to the human rights organization, the government has detained more 150 opponents and in other situations has surrounded some of the activists' homes to prevent them from "denouncing abuses during Pope Benedict's tour."
Amnesty adds that some human rights organizations and prominent activists have had their phones cut off.
Pope Benedict stuck to mostly spiritual themes on a visit to communist Cuba's most sacred shrine. This morning, the pontiff leads a mass in Havana's Plaza of the Revolution. As Nick Miroff reports from Havana, so far even Benedict's gentle push for greater religious and political freedoms for Cubans has been rejected by the government.
In 1998, when Pope John Paul II made his historic visit to Cuba, few Cuban-Americans made the pilgrimage across the Florida straits.
But when Pope Benedict XVI arrives in Cuba on Monday, hundreds of Cuban-Americans will be on hand in Santiago de Cuba when he celebrates Mass.
Carlos Saladrigas is well-known in Miami's Cuban-American community. He's a prominent businessman and co-chairman of the Cuba Study Group, an organization working to make Cuba a free and open society. He'll be in Antonio Maceo Revolution Square for Mass.