More than a dozen organizers for Unite Here, the hotel and restaurant workers' union have accused the union of using a practice called pink-sheeting to intimidate and manipulate them. Supervisors get organizers to confess personal details about themselves and then use those details to manipulate workers. Organizers say that the tactics are wrong and that it caused them to lose faith in the union. The president of Unite Here, John W. Wilhelm says that the union has a very strong policy against pink-sheeting and that the campaign against it is a result of competition from the Service Employees International Union (SEIU). Last January about 100,000 workers broke away from Unite Here to join the SEIU.
See "Some Organizers Protest Their Union's Tactics", Steven Greenhouse, The New York Times, November 18, 2009