Mortgage rates are at an all-time low. Recent data released by Freddie Mac from 1972 through February 2013 illustrate just what historic times home buyers currently live in. With the Federal Reserve purchasing $45 billion worth of longer-term Treasuries and $40 billion in mortgage-backed securities-for a total of $85 billion each month -30-year fixed rates have been driven down below 4.0% for the first time ever.