"Slave labour is not declining; it has taken on new forms and is growing; it expanded to new sectors where it did not previously exist," said Ivanete da Silva Sousa, an activist in the fight against modern-day slavery in northern Brazil.
"They mislead the workers, tell them that they will be paid well and pay them much less. The recruiters and the employers deceive them," complained Marilyn Gómez, a migrant farm worker in Mexico.
The rescue earlier this month of 12 Venezuelan and three Colombian women from a prostitution network that recruits migrants in Peru is an example of the complex web where migration and human trafficking often involve victims of forced labour and sexual exploitation.
“Poverty has become part of me,” says 13-year-old Aminata Kabangele from the Democratic Republic of Congo. “I have learned to live with the reality that nobody cares for me.”
The southern Indian city Hyderabad is witnessing a construction boom as it prepares to become the joint capital of two states - Andhra Pradesh and the soon to be formed Telangana. Buildings are coming up in almost every neighbourhood.
The upcoming mega sporting events in Brazil are paving a new route for slave labour among those migrating from rural areas to the cities in search of work.
For 18 months, a Chinese immigrant named Xing Haiou slept on a massage table in a windowless room in Reykjavik after completing his 12-hour workday.