IRELAND has reached a deal to give back to Nigeria 5.5 million Euros ($6.5 million) looted by former military dictator Sani Abacha, Nigeria's justice minister said in a statement. The money is the latest Abacha-linked cash reclaimed by Nigeria. Corruption watchdog Transparency International estimates that Abacha, who ruled Africa's biggest oil producer from 1993 until his death in 1998, stole as much as $5 billion of public money during that time. He was never charged with corruption in his lifetime. "The return of these assets will be the first time that Ireland has taken such action and will be a…