Sentence:  Concerns exist on both sides of the Atlantic regarding the effectiveness of government watchdogs and the growing influence of special interest groups within the bureaucracy. ‘Iron triangles' and ‘<WSD>revolving door syndromes</WSD>' which began as Washington concerns are showing their face in the UK too. 
Meaning of the word marked with <WSD> tags:  A situation in which an individual changes employers, perhaps more than once, switching between (a) employment with the government or with an organization having oversight authority and (b) employment with an organization regulated by or overseen by the other employer.