Iraq US and Iraqi troops deployed in the Euphrates valley to sweep rebels out of western Iraq as the top Shiite cleric agreed to federalism, key to cutting a deal on a new constitution. Iran An international crisis was brewing after Iran rejected a broad package of trade and technology incentives offered by the European Union if it agreed to abandon nuclear fuel work. WWII With wreaths, prayers and emotional calls for the abolition of all nuclear weapons, the Japanese city of Hiroshima marked the 60th anniversary of the world's first atomic attack. NKorea US and North Korean negotiators were scheduled to hold a new meeting on Saturday as marathon six-nation talks aimed at convincing Pyongyang to abandon its nuclear programs made little progress. US Discovery's crew readied to undock from the International Space Station after NASA gave the shuttle a green light to return to Earth Saturday. US Anger at the Iraq war simmered below the grief, as the midwestern state of Ohio remembered 15 marines killed in a deadly week for American forces in Iraq. Iran The watchdog UN atomic agency meets Tuesday with a crisis brewing after Iran rejected an EU demand for it to abandon making nuclear fuel with possible weapons use, in return for trade, technology and security incentives. Sudan Uganda's president said the helicopter crash that killed Sudanese vice president John Garang may not have been an accident, dropping a bombshell on thousands mourning the death of the ex-rebel leader in south Sudan. Russia Russian rescue workers made a new attempt on Saturday to tow a Russian mini-submarine trapped on the seabed off Russia's Pacific coast with seven crew aboard, after managing to move the vessel overnight, the Pacific Fleet was quoted as saying by agencies. Mideast Israeli Arabs vented their anger at what they called a culture of racism as they paid their last respects to four victims mown down by a Jewish gunman seeking to scupper the Gaza Strip pullout. Britain Prime Minister Tony Blair announced a sweeping range of new powers to combat terrorism following the London bombings, warning hardline clerics in the country that "the rules of the game are changing". Sudan Thousands of Sudanese government troops and ex-rebel fighters deployed here ahead of the funeral of Sudan's vice president and former southern guerrilla leader John Garang.