Employees of a local Asia Commercial Bank (ACB) outlet arrange bricks of dong bank notes sent in from the state bank in Hanoi on August 23, 2012. Vietnam's stock markets have lost nearly $4.0 billion ... more 

Employees of a local Asia Commercial Bank (ACB) outlet arrange bricks of dong bank notes sent in from the state bank in Hanoi on August 23, 2012. Vietnam's stock markets have lost nearly $4.0 billion in value after two top bankers were arrested this week in a widening police probe into the banking sector, state media said Friday less