In this hour of To the Best of Our Knowledge, some of the most critical questions you’ll ever face. Who are you? What does your life mean? And how did you decide who you wanted to be? We’ll hear from Rabbi Harold Kushner, Senator John McCain and novelist Tim O’Brien. We’ll talk about making...Read more



Scientists are launching one of the most audacious projects ever conceived: a detailed map of the human brain, neuron by neron, synapse by synapse. For some scientists...