LIBBY GEORGE NIGERIAN immigration officials returned the passport of a prominent activist against police brutality after it was seized when she tried to leave the country last week, the activist said on Monday. Modupe Odele, second from right. Picture: Facebook Thousands of people took to the streets last month in anti-police protests. The demonstrations climaxed on October 20 when security forces opened fire and killed at least 12 protesters in Lagos, according to witnesses and Amnesty International. The army and police have denied the killings. Modupe Odele, a lawyer who has helped arrange legal defence for the protesters, said last…