This is just an attempt to pry Adrian's economic discussion off the World Cup thread.
The structural unemployment which struck the coalfield in the mid 1920s was exacerbated by the cyclical unemployment caused by the Wall Street crash of 1929. By 1932, when unemployment among Welsh insured males reached 42.8%, Wales was among the world's most depressed countries.
While unemployment was at its most extreme in coal mining, the depression also hit steel, tinplate, slate and transport workers. Agriculture experienced great hardship, with many fully employed smallholders and farm labourers earning less than those on unemployment benefit.
It is a recognition that hard times are, and will be, a growing political story in the country, and an indication that it is bracing itself not just for a fresh dose of pain and social disruption, but a testing of community resilience not seen since the coalmine and steel factory closures of the 1980s.
Wales is no stranger to deepseated poverty, inequality and disadvantage. Between one in three and one in four residents live below the breadline; one in six working-age residents claim out-of-work benefits (second only to the north-east of England), and just over 9% of these are on incapacity benefits.