World highlights

• Traces of radiation have been found at several more sites in London during investigations into the death of a former Russian spy last week. British Home Secretary John Reid told parliament the traces had been found at "several other premises" in addition to Alexander Litvinenko's home and a hotel and restaurant he visited on November 1, the day he fell ill with radiation poisoning.

• Saddam Hussein, already condemned to hang, listened quietly in court as witnesses recalled mass shootings and water torture during a campaign that prosecutors say was genocide against the Kurds.

• An F-16 fighter on a combat mission near Baghdad crashed, and the pilot appeared to have died after ejecting. The US military confirmed the crash but said it had no information on the fate of the pilot or the cause of the crash.

• The US called on Nato allies to do more in Afghanistan, but acknowledged that domestic politics held some countries back from a more robust presence there. The call came as a suicide bomber killed two Canadian soldiers in an attack on a convoy in the south of Afghanistan, underlining the risks in Nato's toughest ground combat to date.