Police in Nairobi have arrested a woman after she was found in possession of a hand grenade casing, three pistols and 51 rounds of ammunition. Nairobi provincial police boss Anthony Kibichu says the woman—identified as Milcah Wangui Waithera—was arrested this morning in Zimmerman estate….she has been handed over to the anti-terrorism police unit for interrogation….sources claim the woman has told the police that the lethal weapons belonged to her husband who is still at large…the arrest follows a recent spate of grenade attacks in Nairobi and Mombasa