JERUSALEM (Reuters) - An Iranian diplomat is in Nigerian police custody on suspicion of spying on the Israeli embassy and other sensitive compounds in the capital Abuja, Israeli security sources said Monday. They said the Iranian was arrested on Jan. 23 when staff reported him "staking out" the embassy. Although he carried no credentials, police discovered he was a diplomat, they said. "A digital camera was found in his possession, with surveillance pictures of the embassy and several other international and local official buildings in the capital," a senior Israeli security source said. A Nigerian police spokesman said last Thursday...