Here is a video about about the abuses connected to the production and sale of cotton in Uzbekistan, turning its people (and children) in to a slave nation which I started looking into a couple of years back .

http://www.youtube.com/watch?v=3n39T35Ia_4

Up to one third of Uzbekistan's workforce is made to labour on cotton farms; denied ownership of the land they work, and forced to labour without reasonable wages they are unable to opt out of cotton cultivation -- those who try are subject to violence, imprisonment and intimidation.

It really does make you stop before you buy a pair of socks; where have they come from, at what cost to humans and the environment?