 Ambassador Thomas-Greenfield, one last question. Early in your diplomatic career, 30 years ago, you were in Rwanda when the genocide began there. There continues to be reflection among many, including U.S. policymakers, and I suspect you're one of them, why more wasn't done to stop the killing there. Do you expect you'll look back at Sudan with the same regrets? No, I don't. I think we have been extraordinarily proactive.