I want to know the answer to the following question:
When did Hodgson publish his DNA study?
All the background I'm provided with is that "(2014), the Afro-Asiatic languages were likely spread across Africa and the Near East by an ancestral population(s) carrying a newly identified non-African genetic component, which the researchers dub the "Ethio-Somali".". Is that enough to answer the question?
Answer: yes