– NEW: 3 or 4 others are being sought, prime minister says – U.S. warships with guided missiles are moving toward the Libyan coast, officials say – Libya's prime minister denounces the "cowardly criminal act" in Benghazi – Analyst: "Jihadists will want the world to believe that the attack is just a part of the … Continue reading Libya PM: At least 1 arrest in killings of Americans in Libya