Some lawmakers and economists are calling for the US to absorb damaged assets of firms.
Other large firms may be close to the brink.
Job No. 1 for central bankers: restore confidence in markets.
Lawmakers focus on bailouts and look to overhaul financial regulations.
Markets from London to Tokyo fell on the news of Lehman Brothers' bankruptcy.
More oversight lies ahead, no matter who's in the Oval Office.
As venerable Wall Street firms succumb to the home loan crisis, focus shifts to limiting taxpayer cost.