TheCoalition: both long-scale and short-scale are in use in UK: I was taught long-scale at school in the 1970s; Eurooe, notably France is always long-scale. The US is however different in using invariable short-scale. The wiki page you cite also says this.
I think it would be helpful to abandon the measures which can be long or short (see also the difference between a milliard and a billion), and state e number of thousands of million.
But either way, it's a side-show to the issue, which is that the heavy overspending and level of national debt which pre-existed (and was a major factor in) the credit crunch. And that unpopular as the current plans for cuts might be, they haven't even stopped the overspending, let alone begun to tackle the actual debt.
And no one else has put a costed alternative to the current half-measures, let alone any plans for how to actually stop overspending, rather than just halve it.