They are not secret in that sense. Assange will know them when they are filed with the court. I have a feeling that there's enough material to put him on trial

They are not secret in that sense. Assange will know them when they are filed with the court. I have a feeling that there's enough material to put him on trial in USA and he has gone tit-tat with many three-letter agencies. They have a long memory and don't like challengers. Whether he gets convicted or not that's another thing.