Last week was a very nice week for mortgage rates. The economic data was rather mixed, some pointing toward economic growth, while others hinting at a double dip recession. Despite this mixed data, the prices of mortgage backed securities approached the highest levels of the year bringing mortgage rates to 5 month lows. After hitting the highs of the year early on Friday, MBS did come under some selling pressure which lead to many leaders repricing for the worse Friday afternoon as the losses held...