Example of what private companies can do - http://www.huffingtonpost.com/2011/05/20/facebook-photodna-microsoft-child-pornography_n_864695.html http://www.huffi

Example of what private companies can do - http://www.huffingtonpost.com/2011/05/20/facebook-photodna-microsoft-child-pornography_n_864695.html http://www.huffingtonpost.com/2011/05/20/facebook-photodna-m...