BASSETERRE (AFP), Saint Kitts and Nevis—United States (US) Secretary of State Marco Rubio will seek to address Caribbean leaders' concerns about Cuba at a summit on Wednesday, as Washington ramps up pressure on the communist island fresh after removing Venezuela's president. Rubio, a Cuban-American who has spent his political career hoping to topple Havana's government, is also looking for sustained cooperation on Venezuela and troubled Haiti as he takes part...