The Islamist group Boko Haram has claimed responsibility for a series of attacks on churches across Northern Nigeria.<br /><br />The impact was devastating. About a dozen cars were destroyed. In some of them, entire families perished just as they were leaving the first mass. <br /><br />Up to forty people are now dead.<br /><br />But angry residents say the figure is much higher. They vent their anger on the failure of security agencies to protect them.<br /><br />Al Jazeera's Ahmed Idris reports from Abuja.
