Or at least they will be soon, via AP:

The Palestinian president cleared the way Wednesday for a possible autopsy on  Yasser Arafat’s remains, following a request from his widow after a Swiss lab  said it found elevated levels of a lethal radioactive isotope on the longtime  Palestinian leader’s belongings.

The developments have reignited a storm of speculation over what killed  Arafat, who died on Nov. 11, 2004 at the age of 75 at a military hospital  outside Paris after decades of fighting with Israel.

Arafat’s widow, Suha, who rejected an autopsy at the time of his death, said  she wanted one done now in the wake of the lab’s findings, first reported by the  Arab satellite TV station Al-Jazeera. In an interview with the station, she did  not explain why she waited nearly eight years to have the belongings, including  a toothbrush and a fur hat, tested.

As further reported by the Jerusalem Post:

Tests performed on former Palestinian leader Yasser Arafat’s personal belongings have revealed that they contained abnormal levels of the radioactive substance polonium, Al Jazeera reported on Tuesday….

According to the report, Russian spy-turned-dissident Alexander Litvinenko, who died in London in 2006 under suspicious circumstances, was found to have been poisoned with polonium slipped into his tea.

As pointed out at Israel Matzav, there are some, um, important voices suggesting the Israelis might be behind it.

Update:  More at Israelly Cool.