Peter Kahn and his students Solace Shen and Heather Gary (and other collaborators) won Best Paper award at the International Conference of Human-Robot Interaction 2012.
The paper is titled: “Do People Hold a Humanoid Robot Morally Accountable for the Harm it Causes.” Solace Shen presented the paper at the conference. http://depts.washington.edu/hints/publications/Robovie_Moral_Accountability_Study_HRI_2012_corrected.pdf