AP - On the eve of Hurricane Katrina's third anniversary, a nervous New Orleans watched Wednesday as another storm threatened to test everything the city has rebuilt, and officials made preliminary plans to evacuate people, pets and hospitals in an attempt to avoid a Katrina-style chaos.

AP - Union bosses in this region of rural Mississippi have long grumbled that the largest factories here hire illegal immigrants, and that the immigrants were starting to get more overtime and supervisory positions.

AP - When a computer system that distributes flight plans nationwide came rolling to a halt this week because of a software glitch, so did airplanes on tarmacs from Orlando to Chicago. The ensuing delays drove home just how easily an apparently isolated problem can trigger network-wide disarray in the country's aging air traffic control system.

AP - Barack Obama stepped triumphantly into history Wednesday night, the first black American to win a major party presidential nomination, as thousands of Democrats transformed their convention hall into a joyful, shouting celebration.

AP - Former President Clinton forcefully endorsed Barack Obama's bid for the White House on Wednesday, telling delegates to the Democratic convention that Obama is "ready to lead America and restore American leadership in the world."

AP - Western leaders warned Russia on Wednesday to "change course," hoping to keep a conflict that already threatens a key nuclear pact and could affect the U.S. meat and poultry industry from broadening into a new Cold War.