Meet Karen Tse. A former public defender and ordained minister, Karen Tse moved to Cambodia in 1994 to train public defenders. After witnessing many violations of the rights of citizens, she founded International Bridges to Justice to promote systemic global change in the administration of criminal justice. The organization has dramatically improved and even saved the lives of everyday citizens by training and supporting criminal defense lawyers and establishing a network of Defender Resource Centers throughout China. Plans call for expansion in China, as well as Vietnam, Cambodia and other countries where programs are expected to reach critical mass due to public awareness and the creation of professional associations of trained advocates and judges. Learn about her story in this episode of Uncommon Heroes, funded by the Skoll Foundation. More information at www.skollfoundation.org.

Larry Lessig gets TEDsters to their feet, whooping and whistling, following this elegant presentation of "three stories and an argument." The Net's most adored lawyer brings together John Philip Sousa, celestial copyrights, and the "ASCAP cartel" to build a case for creative freedom. He pins down the key shortcomings of our dusty, pre-digital intellectual property laws, and reveals how bad laws beget bad code. Then, in an homage to cutting-edge artistry, he throws in some of the most hilarious remixes you've ever seen.