The mother of a Somali teenager who survived a US flight in a wheel well has told the BBC of her shock and relief to discover he is alive. Ubah Mohamed Abdullahi, who lives in a refugee camp in Ethiopia, says it was the first news she had heard about her quot;lost sonquot; for six years. Divorced from his father, she has not been in contact with the family since they moved to the US in 2008. The boy#039;s father said the 16-year-old had been trying...