11.   She spoke shortly after visiting the house on Goree Island where slaves were kept in cells and chained together before being shipped off to the Americas.

12.   Some even equated membership fees and domain name ownership with poll taxes that some southern U.S. states adopted a century ago to keep former slaves from voting.

13.   To keep the slaves from learning enough to get uppity, master designers programmed Replicant life spans to last just two years.

14.   When not working the fields, the virtual slaves were kept in tiny prison-like cells and guarded by armed men, the human rights group said.

15.   Visitors to the museum are guided through a dark gallery where slaves were kept for weeks at a time.