Lard.  Butter. Goose fat. Why is there such a fear of fats, and why isn't it warranted?  Why are more people turning back to traditional animal fats and turning away from the trendy vegetable oils?  This week Adrienne and Nikola explore the ins and outs of fats and oils.  Why they're needed for health, as well as how best to use them.  What is the best fat to use when high-heat frying?  These questions and more, answered on this week's Q & A.