Seated on a folding chair in a cramped union office in New York, Wilhelm Ado, a visiting German labor leader, explained through an interpreter that he had come to help American workers do what they can no longer do easily on their own -- organize themselves into effective unions. That means establishing unions with collective-bargaining rights and contracts that, once negotiated, are binding on managers. American law gives workers the right to choose to be represented by unions, but today that happens less and less as managers, ignoring the law, block the process. With employers firing or harassing employees who try to organize unions, only one in seven organizing drives eventually produces a contract. So the American labor movement has turned abroad for the organizing leverage it is losing at home. Wilhelm, a compact, 60-year-old, is a foot soldier in that campaign. In late July, he visited the United States to help the Communication Workers of America (CWA) organize workers at T-...