An application of NKRL (Narrative Knowledge Representation Language) techniques on (declassified) 'terrorism' documents has been carried out in the context of the IST Parmenides project. To allow the broadest possible exploitation of the 'semantic content' of the original documents, this application has required implementing the integration between the two main inferencing modes of NKRL, 'hypotheses' and 'transformations'. The paper describes the conceptual problems encountered and the solutions adopted.