Iraq Fifteen people were killed and scores wounded in a car bomb attack on a Shiite mosque in Baghdad as they celebrated a major Muslim holiday, after Al-Qaeda's frontman in Iraq threatened to fan the flames of civil war. US US President George W. Bush's plans for a second term received a positive response from the European Union and Japan but elsewhere there was a mixture of scepticism and downright hostility. Mideast Palestinian security forces took up positions across the northern Gaza Strip with orders to prevent attacks by militants, winning plaudits for new leader Mahmud Abbas from Israel. Iraq The group of Al-Qaeda frontman in Iraq, Abu Musab al-Zarqawi, posted a video on the Internet showing the beheading of two Iraqis after they "confessed" to working at a US base in the country. Iraq Chinese officials said they had warned their citizens to stay out of Iraq after kidnappers of eight Chinese men reportedly said they would spare the hostages if Beijing issued a travel ban. Russia Scores of people who lost family in the Beslan school hostage massacre last autumn blocked a major highway for a second day, accusing Russian officials of not providing accountability for the tragedy and demanding an independent probe. Ukraine Kiev once again turned orange as Viktor Yushchenko prepared to assume power and begin to turn Ukraine away from traditional Russian influence toward Europe. HongKong Some 15,000 Hong Kong residents gathered to mourn purged Chinese reformer Zhao Ziyang, who died Monday, at a candlelit vigil in what was the only memorial held on Chinese soil. Belarus Belarus and the Czech Republic were drawn in a diplomatic spat when the countries exchanged tit-for-tat expulsions of top diplomats, further souring the former Soviet republic's relations with Europe. Space The European robot lab Huygens found liquid methane on the Saturn satellite Titan, a chemical that seems to have shaped the moon's peculiar landscape and weather system, scientists said in their first detailed assessment of the probe's mission.