The Pentagon announced the release of four Guantanamo Bay detainees to the Kingdom of Saudi Arabia Wednesday, lowering the number of remaining detainees to 55. Salem Ahmad Hadi Bin Kanad, Muhammed Rajab Sadiq Abu Ghanim, Abdallah Yahya Yusif Shibli, and Muhammad Ali Abdallah Muhammad Bwazir were all former al-Qaida members with a long history of terrorist…