'Arafat's 2004 death remains shrouded in mystery, and this week's findings by Switzerland's Institute of Radiation Physics — that belongings linked to Arafat contained an elevated level of a radioactive agent — have revived speculation about foul play.

However, the institute said more tests are needed, prompting Arafat's widow Suha to demand that her husband's remains, buried under a glass-and-stone mausoleum in his former West Bank compound, be exhumed.

Arafat's successor, President Mahmoud Abbas, has agreed to an autopsy in principle, but it seems a final decision will take time. Abbas aide Nimr Hamad said Thursday that a team of experts would first be sent to Europe to learn more from the Swiss institute and from the French military hospital where Arafat died on Nov. 11, 2004.'

Read more: Palestinian Leader Wants More on Arafat