Jill Biden, author of Don’t Forget, God Bless Our Troops.

Topic: The Second Lady of the US talks about being the mother of a deployed soldier and the effects of deployment on children.

Sean Connolly, author of The Book of Perfectly Perilous Math.

Topic: Death-defying challenges for young mathematicians.

Issues: How to defeat vampires using algebraic equations; destroy and out-of-control asteroid using geometry; escape an enemy spy using ratios and proportions; plus killer tornadoes, deadly spiders, zombies, and more.