Moscow: Two Americans Poisoned, Maybe Thallium

Breaking news from Moscow, Russia... Two American women who were hospitalised in Moscow for possible thallium poisoning have flown home to the United States. Colleagues and relatives are struggling to understand how and why someone would give the two the potentially fatal chemical. A US Embassy spokesman identified the women as Marina Kovalevsky and her daughter, Yana, but gave no further details. Thallium is a reputed poison of choice for assassins. Full story...