COTONOU, Benin (Reuters) - When she was 8, Rachelle Akawe's aunt sent her from Benin to work as a domestic servant in Niger. After 10 years, Akawe finally returned home, her childhood gone and her dreams in tatters. "I wanted to be a lawyer. Now at 26, I am learning to read and write," she said. "When you are a child slave, you do not have a choice ... you always feel abandoned ... you have no future. It stays with you for the rest of your life." Akawe's tale is unfortunately common in Benin, a tiny West African nation...