(International Business Times) – Children make up about 60 percent of the more than 430,000 people who have poured in to Bangladesh over the last four weeks – Rohingya Muslims fleeing terrible persecution in Myanmar. They have seen family members killed and homes set on fire, and they have endured dangerous journeys through forests and on rickety boats. Sometimes they’ve done it alone. Unicef has so far counted more than 1,400 children who have crossed the border without a parent.