WASHINGTON (AP) -- The Federal Reserve is ready to lower interest rates again to brace the wobbly economy even as zooming oil prices spread inflation, Chairman Ben Bernanke signaled to Congress on Wednesday.

He is fighting to keep the economy afloat after mighty blows from the housing and credit crises, while trying to contain inflation.

For now, the priority is shoring up the economy, Bernanke suggested in an appearance before the House Financial Services Committee. He pledged anew to slice a key interest rate and help the economy, which many fear is on the verge of a recession, if not already in one.

"The economic situation has become distinctly less favorable" since the summer, the Fed chief told lawmakers.

Since then, the housing slump has worsened, credit problems have intensified and the job market has deteriorated. Bernanke said that combination of bad news has made people and businesses more cautious about spending and investing, further weakening the economy.

The country should prepare for "sluggish economic activity in the near term," Bernanke said. Concern is growing about the possible return of stagflation, when stagnant growth is combined with rising inflation

WASHINGTON (AP) -- Fannie Mae and Freddie Mac will be allowed to expand their roles in the turbulent mortgage market even as worsening conditions in the housing sector punish the two companies.

Fannie, the largest buyer and backer of U.S. home loans, said Wednesday it lost nearly $3.6 billion in the fourth quarter of 2007 amid mounting home-loan delinquencies and soured bets on interest rates. Freddie is expected Thursday to report a $1.5 billion fourth-quarter loss, according to Wall Street estimates.

Under a previous agreement with federal regulators, the timely filing of Fannie's and Freddie's financial results triggers the removal of an investment-portfolio cap placed in the aftermath of multibillion-dollar accounting scandals at the government-sponsored companies.

Analysts said the impact will be limited, however, because of the large cash cushion Fannie and No. 2 mortgage financer Freddie must maintain as a reserve against risk. Tightness in credit markets makes it expensive for Fannie and Freddie to marshal additi/.onal funds.

Fannie, which gave a pessimistic housing outlook for 2008, said close to 90 percent of its fourth-quarter losses stemmed from investments it made based on the assumption that falling interest rates would cause

Eligibility to Make Contributions
The contribution maximum is the same for Roth IRAs as it is for traditional IRAs. For 2007, you can contribute $4,000--or $5,000 for investors over age 50. (You have until April 15 to make a 2007 contribution.) The contribution limit goes up for 2008--to $5,000 for those under 50 and $6,000 for those over 50. The income thresholds, however, are higher than they are for deductible contributions to a traditional IRA.

Singles may make at least a partial contribution to a Roth IRA if modified adjusted gross income is less than $114,000 (in 2008 that increases to $116,000). Married couples filing jointly may contribute as long as their modified AGI is below $166,000 (in 2008 that increases to $169,000). Married filing separately may only contribute if modified AGI is less than $10,000.

You can contribute past age 70 1/2 as long as you have earned income and are otherwise eligible. You do not have to take Required Minimum Distributions at age 70 1/2.

Contributions can be made in the year the income is earned or up to the filing deadline of your tax return, not including extensions (April 15 in most cases).

Tax Penalties on Roth IRAs
There are fewer potential penalties for Roth IRAs than there are with traditional IRAs. Because you are