The first part of the prisons likely to be hit will be the kitchens, where stoves will remain unlit, ready-meals unheated and thousands of breakfasts uncooked.
From there the impact will fan out. The laundry will be left unwashed, prison corridors un-mopped, and the lawns on the external grounds ring-fenced with barbed wire will go uncut.
On Tuesday, America’s vast army of incarcerated men and women – at 2.3mof them they form by far the largest imprisoned population in the world – will brace itself for what has the potential to be the largest prison strike in US history.
Nineteen days of peaceful protest are planned across the nation, organised largely by prisoners themselves.