Workers are seen at a construction site in Doha, on November 16, 2014. Qatar, host of the 2022 football World Cup, pledged  to introduce new legislation to replace the controversial "kafala" sponsorship system and improve conditions for migrant workers by early 2015. The current law, which limits the rights of movement for foreign workers, would make way for legislation that was "currently under review," said the labour and social affairs ministry.  AFP PHOTO/STR        (Photo credit should read -/AFP/Getty Images)