I am sure that I heard David Cameron reassure the public that if a new treaty was negotiated within the EU the British people would be granted a referendum. Of course he said that before the full extent of the Greek, Italian, Portuguese, Irish and Spanish debts became public.
I don't think that he ever envisaged a new treaty coming on the scene during the term of his premiership. I suspect that Nick Clegg, when he appeared on the Andrew Marr program, already knew what the Germans and French were up to when he began the excuses for not holding a referendum.
If this pair renege again on the promise of a referendum then we will all know what we already suspect...the politicians are scared witless of allowing the British public a vote on the EU! They recognise that the British inherently dislike being ruled by foreigners and that IS the bottom line. It was a traitorous decision and so unnecessary because Turkey have a trade agreement with the EU without being a member state.
Until we begin to protest in force I fear that this will always be the case. They won't budge until they feel threatened.