On Tuesday, April27, Senator Levin, who is the chairman of the Senate Sub-committee investigating Goldman Sach’s involvement in collateralized debt obligations (CDO’s), questioned several Goldman Sachs executives on their management of Timberwolf I. Timberwolf I was a $1 billion CDO that collapsed just 5 months after its inception. Carl Levin determined that Goldman Sachs made roughly $3.7 billion from shorting CDOs in 2007, of which Timberwolf I was one. This came during a time when their investors lost millions in investments from buying these CDO’s that Goldman created.