I can honestly say that I dont know, as far as I was aware these were email addresses that we had collected over a number of different campaigns, the petitions, signups, facebook, twitter that sort of thing. However Im not responsible for the website these days so I will check to confirm.
What I can safely say is that N-O have not passed on email addresses thats for sure, I and the other admins on TT would never do that and Im 110% sure that Dave, Phil and those responsible for this place wouldnt either.
I have now had an email from NUST explaining how they got my email address. Whilst im not over the moon about it the intentions were good