"The turmoil in Libya and elsewhere in the region has toppled or undermined North African dictators who negotiated a web of benefits from Europe, including aid and diplomatic standing, in return for stopping immigrants seeking to cross the Mediterranean. Without the assistance of those leaders, many in Europe worry that they will face new waves of illegal immigration not only from the liberated areas in the north, but from much of sub-Saharan Africa as well." (Quoted from article)