A 31-year-old woman whose husband was arrested last month on suspicion of assaulting their 10-year-old daughter just before the girl's death was detained by police Monday for allegedly failing to stop the attack, investigative sources said.Her husband, Yuichiro Kurihara, 41, was arrested on Jan. 25 after the daughter Mia was found dead with bruises in the bathroom of the family's house in the city of Noda, Chiba Prefecture, the previous night. An autopsy failed to identify the cause of the girl's death.The mother, Nagisa, is suspected of failing to stop Kurihara's assault on Jan. 24, which …READ FULL ARTICLE