The US has its dustbowl era protest songs (and their fine chroniclers Guthrie and Seeger). The 60s had a good crop of protest songs with some good examples from Dylan (even if a lot of it was somewhat teen-angst protest). The 80s produced some excellent anti-Thatcher songs (Hilda's Cabinet Bend, A living Wage, Lamb to the Slaughter (Coope Boyes and Simpson)).

Where are the protest songs of now against the austerity measures imposed to save the bankers from the consequences of their own overweening pride? The protests over the hospital bed dying in their own shit because of insufficient nurse staffing levels, the ten thousand who have died (some by suicide in despair) within 6 weeks of being declared "fit to work", the suicides of those driven from their homes by the bedroom tax, even the destruction of the planet to extract (and as a result of the consequent warming by) fossil fuels?

So far I can think of about one - "Arrogance Ignorance and Greed". I'm on the verge of re-creating KirkPatrick's "Monster Science".   

I'd love more examples - preferably with links to words and chords and performances so that I may learn and perform such songs.