The Nigerian presidency on Wednesday hit back at criticism by former president Olusegun Obasanjo, describing his widely leaked letter accusing Goodluck Jonathan of leadership failures as "indecorous" and "reckless". Presidential spokesman Reuben Abati said in a statement that Obasanjo's letter to President Jonathan was deliberately leaked to the media in an effort to "to impugn the integrity of the president". "I want nothing from you personally except that you should run the affairs of Nigeria not only to make Nigeria good, but to make Nigeria great for which I have always pleaded with you and I will always do so. Sani Abacha, a dictator in power from 1993 to 1998 when he died, ruled Nigeria with an iron fist, jailing and driving his critics into exile.