Yup, there's just a single national flag on earth without any of these common colors. Can you guess what it is?

Both kids donned the flag’s colors on their T-shirts and heads, the younger in a bandanna and the older in a construction paper crown of blue and red. “They are proud to be Haitian,” Louis said.

The blue and red flags flapped in the wind, waving with the syncopated rhythm of dozens of drums and the savory musk of slow-cooked goat. Sunday was Haitian Flag Day, ...