The leader of the largest public sector union promises to mount the most sustained campaign of industrial action the country has seen since the general strike of 1926, vowing not to back down until the government has dropped its controversial pension changes. Dave Prentis, general secretary of Unison – which has 1.4 million members employed by the state – described plans for waves of strike action, with public services shut down on a daily basis, rolling from one region to the next and from sector to sector. He said there was growing anger over a public sector pay freeze that...