A loud explosion in the evening did slip back Benghazi, Libyan stronghold of the insurgents, the nightmare of a war that never seems to end. Most likely it was a car bomb to explode at 19.10 in front of the Hotel Tibesti, one of the most luxurious hotels in the city, where the seat of the Representative Office of the European Union and where to stay in these days even the Italian ambassador in Libya , Vincenzo Schioppa.