Concern grows in Nigeria over recent sectarian attacks

Nigeria has one of the worst records of religious violence in Africa. In the last ten years, thousands have been killed in sectarian violence between Christians and Muslims. In the most recent attacks, hundreds were slaughtered in villages near the city Jos last Sunday; many were entire families, killed with machetes and burned. With authorities unable to curb the violence, many fear the instability could have grave local and international consequences. Sam Olukoya reports from Lagos.