A more modern and relevant example would be the foreign workers from the indian subcontinent on most of the middle east construction sites building the sky scra

A more modern and relevant example would be the foreign workers from the indian subcontinent on most of the middle east construction sites building the sky scrapers or the next FIFA cup facilities. (withheld pay, life threatening living conditions, confiscated passports). These is modern slavery. Aided and abetted by the state. You may also want to look at the few stories of "domestic workers" and "maid" abuse that make the headlines from time to time in your own country (works in any country with a free press). As said in another comment, slavery is alive and well. It is only frowned upon.