TARP returns: Geithner to announce plan to buy up troubled assets

Instead of taking a single approach, the Obama administration plans to divide assets and other loans into three categories, each with its own solution, according to sources familiar with the discussions, speaking on condition of anonymity because the details are not finalized.

The government would buy and hold on to those assets whose falling prices are putting banks under the most pressure. Officials want to limit these purchases because of the vast expense.

The centerpiece of the plan would be a guarantee to limit losses on a second group of troubled assets that can be kept by the banks because they have more stable prices.

And it would allow banks to retain and profit from their healthiest assets.

Beyond these initiatives, the government also is likely to inject more capital into troubled institutions.