ocr: North Korea operates a strict "estate" system, by which the population is classed according to three categones:loyal, wavering andhostile. Inclusion in the first category 1S a prerequisite for advancement. Those deemedhostile - usually Christians and the children of landlords or ofKoreans who fledto the South -have barely any rights. People live severely regulated lives. Divorce is non-existent and extra-marital sex highly trowned - - upon. Women form 57% - of the work force, but are also expectedto run the home; it is not uncommon for them to rise at 4 am., and end their working day at 7 pm. ...