MM,
The image in the above link shows one side of the coin, so let's not forget the other side of the coin: the group that plays to Eritrea's tone, Aways and Co.
Who are caught in the middle again? Innocent civilians whose situation is even made worse by Al-Shabaab, the dying masses life link were the airport and NGO's, unfortunately both came under threat by the Al-Shabaab leadership. So if were going to point fingers let's be smart about it since no one group is directly responsible, they all are.