Goldman Sachs, the nation’s most powerful financial company, has reported the richest quarterly profit in its 140-year history: $3.44 billion between April and June. Goldman’s record profits come just one month after it repaid $10 billion of TARP money to the US Treasury, freeing itself from restrictions on year-end bonuses. We speak to Matt Taibbi, whose new Rolling Stone article argues that “Goldman Sachs has engineered every major market manipulation since the Great Depression.”