This policy is entirely justified given the scale of the social crisis. But it also masks the continued rot in the housing market, allows lenders to hide losses, and stores up an ever larger overhang of unsold properties. It takes heroic naivety to think the US housing market has turned the corner (apologies to Goldman Sachs, as always). The fuse has yet to detonate on the next mortgage bomb, $134bn (£83bn) of "option ARM" contracts due to reset violently upwards this year and next.