Even dissidents hold back as Castro's death casts a pall over Cuba

By Nelson Acosta and Ana Isabel Martinez HAVANA (Reuters) - Cuba's most prominent dissident group called off its weekly protest march for the first time in 13 years on Sunday following the death of its nemesis Fidel Castro, the revolutionary leader whose passing has cast a pall over the island. Castro, an icon of the Cold War who built a communist state on the doorstep of the United States and defied half a century of U.S. efforts to topple him, died late on Friday at the age of 90. The Cuban go