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Most Influential Trade Unions

For some, they cause travel chaos, artificially inflate wages and exert undue power on democratic governments; for others, they offer representation to the voiceless, save jobs from globalization's worst imbalances and stand up to state-led tyranny.

Trade unions remain a fearsome political and economic force around the world, able to mobilize large numbers of warm bodies to man picket lines and pressure politicians. CNBC has compiled a list of the most influential unions.

Posted 20 June 2011

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