"When you ask [the Swiss scientists] the question directly, they will tell you, 'Of course it's a murder,'" Suha Arafat said. "There's no other explanation." To most Palestinians, this report will come as little surprise: They finger Israel with his death. But Suha won't name a suspect, only going so far as to say a nuclear country must be behind it, because it takes a nuclear reactor to produce this type of polonium.