The head of JPMorgan Chase, Jamie Dimon, has gotten an invitation to testify in front of the Senate Banking Committee about his bank's recent trading loss of at least $2 billion.
STEVE INSKEEP, HOST:
Dimon is very much the public face of his firm. In a Wall Street culture where banks are defined as much by the executives who run them is by the assets they hold. So, what kind of culture led to the multibillion dollar losses at JPMorgan Chase?