::Actually, now that I think of it, I think a bold title might be appropriate specifically for 2011 Horn of Africa famine. The reason is this - a famine is technically occurring only in a few specific provinces of southern Somalia, while a severe food crisis is affecting the entire region. The article currently covers both the famine and the food crisis, as they are closely related and tend to be regarded as part of the same event in official reports. In that sense, the title "2011 Horn of Africa famine" is not really descriptive, and it needs to be clear that the article (and the name as used by many news sources) is not just about the famine, but about the food crisis issues in the rest of the region as well. To accommodate this, I think the following would be a better introduction: 
 ::"The 2011 Horn of Africa famine refers to the famine occurring in several provinces of southern Somalia and the ongoing food crisis in the rest of the Horn of Africa region, [...]". 
 ::Thoughts?