Advertisement4 Guantanamo Detainees Transferred To Oman, 1 To EstoniaJanuary 15, 2015Krishnadev CalamurfacebookEmailIn this June 27, 2006, file photo U.S. military guards walk within Camp Delta at the Guantanamo Bay U.S. Naval Base, Cuba. The U.S. announced the transfer of four detainees from Guantanamo to Oman; one will go to Estonia. (AP)