Anyway, I've got two: paedophiles and terrorist.
Apparently, traders have now joined that elite. I'm just surprised bankers didn't make it there first... given the public sentiment. (I'm not sure I have any position (heh) on the matter myself.)
Analysts must be shielded by "Chinese walls" from traders. Just imagine what a trader can do if he gets a 20 minute head start (or just a few pertinent bullet points) of an influential report, which is about to be published. Look up 'front running' for details.
Communications within financial companies and between banks and outside entities are pretty heavily regulated. And for very good reason.
Value is created when someone is willing to pay for something to get done, and that something gets done at a cost less than or equal to their willingness to pay. If somebody A is willing to pay for money to be moved, then as long as somebody B is there to move that money, then somebody B is likely generating value by doing so.
[Hey you! Yes you at the back! Stop laughing...]