People are angry because Parliament weren't informed. Parliament wanted one thing to happen (non involvement) and voted accordingly-and find a little later that all their instructions weren't followed. For the civilian, its as simple as that.
I think presuming the "people" and parliament being a on the same wavelength, and the parliament is doing what the people want is a funny thing.
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As for the people being angry, thats to demonstrated, and in any event, its a while till the next election.