Roubini: No Stock Bubble, but 'Huge' Crash Could Come Later

Stocks aren't in bubble territory as yet, but a "huge rally in risk assets" over the next two years puts markets in danger of a big crash, Nouriel Roubini told CNBC on Tuesday, there is a "huge gap between sentiment on Wall Street and the main street," and the real U.S. economy remains weak he added .