<prompt> Translate the following text to EnglishTunapata habari hasa kupitia mahojiano na wasimamizi wa usalama wa juu na uchambuzi wa hati uliofanywa wakati na baada ya ziara za mashirika tuliyojifunza.  <response>: We obtained information primarily through interviews with senior security managers and document analysis conducted during and after visits to the organizations we studied. 