Argentine naval training ship, 'ARA Libertad' which was detained in Ghana for more than two months has arrived back home. The Libertad had been seized following legal action by an investment company trying to recover money still owed after Argentina's 2002 debt default. Thousands of people lined the shore as it arrived in Mar del Plata, three weeks after a United Nations court ordered its release from Ghana reports BBC News. The lengthy diplomatic row over the Libertad began when the ship was prevented from leaving Ghana on 2 October 2012…