Former president Olusegun Obasanjo has urged Nigerian women to get more involved in political activities, saying from his experience, female politicians are more trustworthy than their male counterparts.       Obasanjo, who spoke at a retreat in support of women’s participation in government, political processes and the work place organized by the Initiative for Information, Arts and Culture Development in Nigeria in conjunction with the American Corner, Ibadan, cited the number of men who were prosecuted for several corrupt cases compared to women, and other factors as evidence of his assertion.     In the keynote address, Obasanjo said women’s contributions…