TRIPOLI (Reuters) - Libya has strengthened its oil protection force in southwestern oilfields near the Algerian border after the In Amenas attack in its neighbor. In an interview with Reuters, Colonel Ali Elahrash, head of Libya's Petroleum Faculty Guard, said men from the Western Mountain town of Zintan had been sent in as reinforcements to boost border security as well to oilfields in the area. Last week's raid on the Algerian desert plant, about 100 km (60 miles) from the Libyan border pushed Saharan militancy to the top of the global agenda. ...