For the first time in history , it 's possible to end slavery , says David Bales . Economic trends have reduced the number of slaves and reduced their usefulness , he says . Bales : Education and skills training for freed slaves is crucial .
For the first time in history , it 's possible to end slavery , says Kevin Bales . Economic trends have reduced the value of slaves and limited their usefulness , he says . Bales : Education and skills training for freed slaves is crucial .