File:Concentration camp.jpg

Description: Concentration camp fence, Birkenau, Poland. Photographer: fedewild (flickr.com user). Date: 2 January 2008. Source: "Untitled" in flicker.com at http://www.flickr.com/photos/fedewild/2184541601/ (accessed 10 August 2009). Permission: ''This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic License. In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one. Official license. ''