Ice cream headaches and what's in charcoal. Answers to nagging questions courtesy of columnist Roxanne Webber. Susan Marx lives in Afghanistan and shares the rich food culture. Be afraid of plants. Some of them can kill you says Amy Stewart. When Barbara Kowalcyk's 2 year old son died after eating a tainted fast food hamburger she became an activist to change food safety rules. Marion Nestle explains the unbelievable maze that makes up our food safety system. The challenges of keeping bees in Los Angeles according to beekeeper Kirk Anderson. Then, Armen Petrossian describes the how to enjoy the delicacy of fine caviar. And Laura Avery shares tales of wild blueberries at the farmers market.