As long as violence perpetrated by Islamist militants was more or less contained in Nigeria's remote northeast, the attitude of many citizens and expatriates in the prosperous south was a shrug of the shoulders.
But growing evidence that Boko Haram, or other violent groups or individuals inspired by it, are radiating attacks from their northeastern heartlands across Africa's most populous country has many Nigerians feeling that nowhere is safe.
Boko Haram leader Abubakar Shekau claimed responsibility for two blasts minutes apart targeting a fuel depot on June 25 in the country's main port in Apapa, in the commercial hub of Lagos, saying he had sent a bomber in do it.