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The Nobel Prize in physiology or medicine is awarded to J. Robin Warren and Barry J. Marshall for their 1982 discovery that bacteria, not stress, cause peptic ulcers.

Powerful Texas Republican Tom DeLay reacts to his indictment on a criminal conspiracy charge by saying he has done nothing wrong and calling the prosecutor a "partisan fanatic." Also, other congressmen react to the charges.

Mississippi residents in the areas worst hit by Hurricane Katrina are struggling to deal with mold in their homes. Private contractors are tackling the issue. So is the state. Mold can lead to respiratory and skin problems.

Utah has welcomed New Orleans hurricane evacuees, placing them in apartments and generally putting out the welcome mat. Despite dramatic differences between the two locales, many evacuees say they will stay in Utah.

A new set of documents from Supreme Court nominee Samuel Alito contains his argument that executive-branch officials have immunity when ordering domestic wiretaps in violation of the law. Other documents from his years at the Justice Department reveal a restrictive position on racial discrimination.

Hawaii has moved to limit wholesale gas prices, beginning next week, as consumers suffer high fuel costs. Traders drove oil prices to $68 a barrel on some markets Thursday. Hawaii, which has all of its oil shipped in, has some of the highest gas prices in the nation.

President Bush has had a tough year. The war in Iraq dragged his public standing to its lowest ebb. His administration was criticized for its handling of Hurricane Katrina. But he did score one big success: the appointment of John Roberts as chief justice of the Supreme Court.

Residents in Port Arthur, Texas, are thankful there was not more destruction in their town, which took a heavy blow from Hurricane Rita. With an intact seawall assuring that a catastrophe would be avoided, there was still considerable damage in the town.

AIDS activists are charging that groups promoting abstinence are undermining condom distribution in U.S.-funded programs overseas. They blame a stronger emphasis on abstinence in President Bush's Emergency Plan for AIDS Relief, while the administration says there's been no shift in its focus.

Kenya's president reshuffles his Cabinet, angering members of his ruling coalition and plunging the East African economic power into a political crisis. Some want to move up elections scheduled for 2007.