On Africa News Tonight: All eyes are focused on Nigeria's Electoral Commission (INEC) and its voting machines after the postponement of Saturday's governorship and state assembly elections, Sudan's teachers continue a strike that began in November over low and unpaid salaries. And, Kenya rolls out a campaign using the world's first vaccine against malaria to inoculate more than 400,000 children against the mosquito-borne disease. For this and more, stay tuned to Africa News Tonight!