NEW YORK (AP) - Wall Street joined in a worldwide cascade of despair Monday over the financial crisis, driving the Dow Jones industrials to their biggest loss ever during a trading day. Even a big afternoon rally failed to keep the Dow from its first close below 10,000 since 2004. The sell-off came despite the $700 billion U.S. government bailout package, which was signed into law Friday after two weeks in which traders had appeared to count on the rescue as their only hope to avoid a market meltdown . Click to Read More ... Dow finishes below 10,000 for first time since '04