One of the world's best-known doctors, Sanjay Gupta rushes to broadcast live from the CNN newsroom in Atlanta. Gupta is CNN's senior medical correspondent, as well as a professor at Emory University and neurosurgeon at Grady Memorial Hospital in Atlanta. While reporting on the Iraq War for CNN, Gupta put down his microphone and notebook to operate on both American and Iraqi soldiers with severe head wounds--acts of compassion that earned him praise from soldiers and criticism from media ethicists.