Maangchi's career was born when her son suggested she start making videos of herself cooking Korean dishes.
Author Amy Stewart considers the mosquito the most wicked bug of all because of the amount of disease it spreads. Stewart is author of “Wicked Bugs: The Louse that Conquered Napoleon’s Army and other Diabolical Insects.”
This segment originally aired in 2011.
Peter O’Dowd follows the route of Abraham Lincoln's funeral train 150 years ago, to look at modern-day race relations and Lincoln's legacy.