Downgrading the credit rating of the United States. The White House lashes out at the 'flawed assessment' by Fitch Ratings, but what's worrying the financial experts? Is the world's biggest economy in trouble?

Join host Sohail Rahman.

With guests:

William Lee - Chief Economist, Milken Institute. 

Einar Tangen - Senior Fellow, Taihe Institute. 

Frances Coppola - Economist and Banking Commentator.