292 F.3d 757 SEATTLE OPERA, Petitioner/Cross-Respondent,v.NATIONAL LABOR RELATIONS BOARD, Respondent/Cross-Petitioner.American Guild of Musical Artists, AFL-CIO, Intervenor. No. 01-1127. United States Court of Appeals, District of Columbia Circuit. Argued February 21, 2002. Decided June 11, 2002. On Petition for Review and Cross-Application for Enforcement of an Order of the National Labor Relations Board. Richard L. Cys […]