<prompt> Translate the following text to EnglishUteuzi wa William Henderson, mzee wa miaka 26 wa USPS ambaye wakati mmoja alitumikia kama mkuu wa mahusiano ya wafanyakazi, kama mkuu wa huduma ya posta, unaonekana kama dalili ya umuhimu wa mahusiano ya kazi kwa afya ya muda mrefu ya huduma.  <response>: The appointment last week of William Henderson--a 26-year, second-generation USPS veteran who once served as head of employee relations--as postmaster general is seen as an indication of the importance of labor relations to the long-term health of the service. 