It might turn your stomach, but it makes a perverse kind of sense that there are companies that produce body armor for kids, specifically designed to protect children from events like last Friday's school shootings in Newtown, Conn. Companies like Amendment II, which makes backpacks (in Disney Princess and "Avengers" designs) built with carbon nanotube armor, have seen sales spike since the massacre at Sandy Hook Elementary. At least a half-dozen companies make body armor backpacks, many of which use past school shootings in their marketing pitches. If a bulletproof backpack isn't enough protection, Amendment II also sells a children’s tactical vest for "when the unthinkable happens."