document 'ties al-qaeda to blast', page-19

re: ussliberty & train bomb document 'ties mossad I must be missing something here! Why would somebody commit an attrocity to advance their cause (?) without claiming responsibility?
Any pub, any Fri someone talks vengence. I am told all the ways to wreak havok on my assole neighbour (one of my mates is very inventive) but if he (the a/s neighbour) doesn't know who dun it, what have I achieved?

If no political org can prove responsibility the only reasonable assumption is that it was the work work of criminal psycopaths who conned political psycopaths help to get their rocks off.