Wall Street tumbles 2.1% as Greek fears mount

U.S. stocks dropped sharply as traders bid-up safe-haven assets amid growing concerns Greece may default on its debt and exit the eurozone.

Wall Street tumbles 2.1% as Greek fears mount source: http://finance.yahoo.com/news/stocks-stumble-on-dual-debt-woes--greece-and-puetro-rico-193044779.html