China and Brasil...2 powerful emerging nations that have long complained about the dominant role of the USA's dollar in trade...have agreed to swap $30 billion annually of their currencies...to protect themselves regardless of global problems.
The deal will last 3 years...and was signed before the 5th BRICS Summit in South Africa.
China has signed similar deals with Australia...and Argentina.
http://www.bbc.co.uk/news/business-21949615