<prompt> Translate the following text to EnglishWakati serikali inatumia au inajaribu kudhibiti njia fulani, tumekuwa tukijulishwa na matumizi yake yaliyokubaliwa katika kuamua ikiwa kizuizi fulani cha hotuba ni muhimu kwa madhumuni na mipaka ya programu.  <response>: Where the government uses or attempts to regulate a particular medium, we have been informed by its accepted usage in determining whether a particular restriction on speech is necessary for the pro-grams purposes and limitations. 