An anonymous reader writes "Scientific analysis has now confirmed that former Fatah leader and PLO/PNA head Yasser Arafat's clothing was contaminated with Polonium. The radioactivity was measured in megabecquerels, suggesting a gigabecquerel dose prior to death. No autopsy was performed on Arafat's body prior to burial at the request of his widow, and this seems to be the next logical step in the investigation into what is perhaps now confirmed to be an assassination.
Polonium, an extremely rare radioactive element, was implicated in the poisoning death of former FSB agent and Russian dissident/exile Alexander Litvinenko(wikipedia.org) who was killed in the UK after alleged cooperation with MI6 intelligence."Link to Original Source