Nation: Mortgage Rates Dip For 4th Straight Week!

30-year mortgages fell below 6 percent and are heading lower due to the government's massive new effort to aid the U.S. housing market. The Fed's move to spend up to $600 billion buying mortgage-backed securities owned or guaranteed by Freddie Mac and Fannie Mae caused rates to drop immediately by one half-point. Rates on 30-year fixed-rate mortgages dropped to 5.97 percent down from 6.04 the week previous. Rates on the 30-year hit a high for 2008 of 6.63 percent in July.