The crisis on Wall Street just keeps getting worse.  The Dow Jones fell more than 678 points today-- down 7% and at its worst level since 2003.

How low can it go?  The Dow fell 678 points Thursday....ending the day well below the 9,000 mark.  That's the third largest point drop in history and the worst finish in 5 years.

The selloff quickly spread globally. Markets around the world opened with big losses in early Friday trading.  Floor Trader Art Cashin says, 'Money is as tight as it has been in this entire crisis even after all this work.'

The steep slide came despite hints that the government may invest in troubled banks and take part ownership of them.  Those reports steadied the markets for much of the day-- until the last hour of trading when panic took over and stocks tanked.  This is the seventh straight sell off here on Wall Street.

Many investors say the bottom may be close.  Thursday's dramatic drop came amid fears about the financial strength of General Motors. The U.S. automaker's stock value plunged 30 percent to its lowest level since 1950.

Sam Stovall, Chief equities analyst at Standard and Poor's, says, 'I guess because of continued concerns about US economy, foreign banks and General Motors in particular. I think that's just giving investors more reason to lighten their equity positions.'

As the discouraging economic news just keeps coming.....President Bush invited finance members of the Group of 7 industrial countries to Washington Saturday.

President Bush will address the nation Friday morning, urging calm.  But with global efforts to stem the credit crisis still not having a lasting effect....it's unclear what it will take to turn the negative trend around.