Nobody thought there was going anything radical was going to happen back in the 60s until it did. Nobody thought there was going to be a student upsrising in Paris, till it happened. Nobody thought the Soviet Empire was going to crash, till it happened. I could go on for ever. Looking back of course they all say it was inevitable...

These things happen when the time is right. Goes in waves. Next wave could be due any time. The songs will be there as well. The songs don't stir up the trouble, but they can encourage the people involved in the struggle. And a lot of the time, they are songs that were there in advance, left over from the last time. Wobbly songs in Woodie Guthrie's time, Woodie's songs in the Sixties, Ewan MacColl with skills honed in the 30s...