Race in the US

"Like the time at a Pocono Mountains flea market when Riding scolded Katie, attracting so many sharp glares that he and his wife, Terri, 37, and also African-American, thought "we might be lynched." And the time when well-intentioned shoppers followed Mark and Katie out of the mall to make sure she wasn't being kidnapped. Or when would-be heroes come up to Katie in the cereal aisle and ask, "Are you OK?"—even though Terri is standing right there." (thanks Ali)