L!berals: what MILITANT TACTICS used by public sector unions, was FDR so opposed to?

[Lady Laissez Faire]

"Particularly, I want to emphasize my conviction that militant tactics have no place in the functions of any organization of Government employees. Upon employees in the Federal service rests the obligation to serve the whole people, whose interests and welfare require orderliness and continuity in the conduct of Government activities. " -FDR