// Find and remove the common prefix of security description and trailer, so the trailer only contains meaningful information
          // TODO this is too clever, simplify!
          val secWords = whitespace.split(secDesc).toList.map(Some(_))
          val trailer = trans.getTrailer
          val trailerWords = whitespace.split(trailer).toList.map(Some(_))
          val zipped = secWords.zipAll(trailerWords, None, None)
          val newTrailerWords: List[String] = zipped.dropWhile {
            case (Some(sw), Some(tw)) => sw == tw
            case _ => false
          }.flatMap(_._2)