Fleeing Rohingya Muslims sold ration books to help pay hundreds of dollars to traffickers in order to flee squalid Myanmar camps by boat, only to be stopped at sea and forced back destitute, the refugees told AFP on Friday.Images of hungry and thirsty refugees huddled on boats have stirred memories of a 2015 crisis, when thousands of fleeing Rohingya were stuck at sea as a trafficking trail south collapsed.Some 120,000 of the stateless Muslim minority have languished in camps in central Rakhi