After years of anticipation, autonomous vehicles are now being tested on public roads around the world. As ambitious innovators race to develop what they see as the next high-tech pot of gold, some experts warn there are still daunting challenges ahead.

Searching for Timbuctoo tells the little-known story of a Black settlement, established in the wilds of upstate New York, that brought together a group of ardent abolitionists willing to risk their fortunes, their families, and their futures to destroy slavery.