Art Cashin, UBS Financial Services Director of Floor Operations, think that the world is about to tip.

From this morning's Cashin's Comments:

Currency Warfare – We believe full currency warfare may be ready to break out on a global scale.

The overt move to cheapen the Japanese yen has attracted both attention and participation. (Hedge funds and pseudo hedge funds are aggressively shorting the yen and buying the Nikkei.)

Competitors and trading partners from Korea to China are voicing concerns and challenges. Countermoves may be imminent.