Iraq At least 21 people were killed in attacks across Iraq as US President George W. Bush vowed to complete his country's mission there after Al-Qaeda warned Western allies risked losing thousands of lives in the war-torn country. Britain Thousands of police mounted a huge operation to protect London as Al-Qaeda warned of more horrors exactly four weeks after suicide bombers brought carnage to the British capital. Mideast A teenage Israeli soldier shot dead four people in a blazing row over the country's imminent withdrawal from Gaza before being lynched by furious residents of an Arab-Israeli town. Russia The Russian military was racing against time to rescue a small submarine that had become trapped on the seabed with seven crew aboard, the Ria-Novosti news agency reported. Mideast-Israel An Israeli teenage soldier shot dead four passengers on a bus in an argument over the imminent pullout from the Gaza Strip before being lynched, police said. China-HongKong-Singapore-Taiwan China formally charged a Hong Kong journalist working for Singapore's Straits Times newspaper with spying for Taiwan, state media said. USNASA said the Discovery shuttle was safe to return to Earth after the US space agency decided not to order a new space walk for another repair.