They toil in mines, factories and on construction sites. They are exploited as sex and domestic workers against their will. The International Labour Organization (ILO) estimates there are nearly 21 million forced laborers worldwide. Forced labor is "fundamentally evil, but hugely profitable," says the ILO's director. This is where we can moan about all the ills of this world, or hope that slowly things will somehow get better. But the ILO has been around for 100 years. ILO member states decided "to eradicate forced or compulsory labor in all its forms as soon as possible" — in 1930.