Three Cuban dissidents in a telephone hookup from Havana told a congressional panel on Thursday that allowing American tourists to visit the island would bring corruption, not democracy. As members of a House of Representatives International Relations subcommittee praised them for defying Cuban President Fidel Castro, the dissidents endorsed U.S. policies to isolate his government. "We are supporting what you are doing there because we have a lot of people suffering in jail. We need democracy," said Martha Beatriz Roque, leader of the Cuban Dissident Working Group. Castro "could present it as a great political victory" for himself if the...