<prompt> Translate the following text to SwahiliIn one such study, GGD examined whether national policies, procedures, and practices with regard to cargo imports were causing problems in port operations U.S.  <response>: Katika utafiti mmoja, GGD ilichunguza ikiwa sera za kitaifa, taratibu, na mazoea yanayohusiana na uagizaji wa mizigo yalikuwa yakisababisha matatizo katika shughuli za bandari U.S. 