A number of organizations, such as the Ruckus Society, train labor union activists in public, disruptive techniques. See Plaster, "The Ruckus Society at a Crossroads," Z Mag, July/August 2004, and see http://www.ruckus.org/.
For example, in 2003, the California Nurses Association issued a report which accused Tenet Healthcare, then the nation's second-largest operator of for-profit hospitals, of defrauding the federal Medicare and Medicaid programs of billions of dollars through over-billing and "upcoding" patient care charges so they appear to be the more expensive "outlier" charge. The evidence took CNA several years to uncover. The revelations severely damaged the company financially and politically. A weakened Tenet eventually accepted a neutrality and card-check agreement with CNA in order to turn its attention to pending federal charges. See: Polland, "Nurses' Union Puts Spin on Tenet's Troubles," Pacific Coast Business Times, February 14, 2003; "Tenet Healthcare to Sell 11 Hospitals to Help Cover Cost of Settlement," Medical News Today, July 4, 2006; "California Nurses Association, Tenet Healthcare Reach Agreement on Stronger Voice for RNs on Patient Protections, Fair Elections," press release, California Nurses Association, December 17, 2003.[1][permanent dead link].