E-mails have been released in the United States showing executives of the investment bank Goldman Sachs boasting that they profited from the collapsing housing market. The e-mails were released by a Senate Committee. Its Chairman Carl Levin said banks like Goldman Sachs were self-interested promotors of risky schemes that helped trigger the financial crisis. The bank says that it lost money in the market crash. It says it lost 1.2 billion dollars in the residential mortgage market during 2007-08. Separately, the bank is also defending itself against a government lawsuit which accuses it of misleading investors.