CHISINAU (Reuters) -Moldova's breakaway region of Transdniestria asked Russia on Wednesday to help its economy from Moldovan "pressure" during a meeting of hundreds of officials that the Chisinau government said was a propaganda stunt to gain headlines. The region, long seen as a potential flashpoint with Russia in Europe, held a rare "congress of deputies of all levels" after Moldova required Transdniestrian firms to pay import duties to the central budget from January. The congress passed a resolution saying it would appeal to both houses of Russia's parliamen...