The revolutions that swept the Middle East and North Africa also emptied prisons of militants, a problem now emerging as a potential new terrorist threat, The Wall Street Journal reported Monday, October 1. Fighters linked to one freed militant, Muhammad Jamal Abu Ahmad, took part in the Sept. 11 attack on U.S. diplomatic outposts in Libya that killed four Americans, U.S. officials believe. Intelligence reports suggest that some of the attackers trained at camps he established in the Libyan Desert. Ahmad, although believed to be one of the most potent of the new militant operatives emerging from the chaos of the Arab Spring, isn’t the only one, according to Western officials. They say others are also trying to exploit weaknesses in newly established governments and develop a capacity for strikes that could go well beyond recent violent protests in Libya, Egypt and elsewhere.