NYSE
'(<a href="http://www.j-archive.com/media/2011-06-10_J_30.jpg" target="_blank">Sarah of the Clue Crew reports from inside the New York Stock Exchange.</a>)  If the Dow Jones Industrial Average declines more than 10% in a day, trading is halted to prevent a market slide; it's a safety feature called this 2-word term, also a device that protects homes from electrical overloads'
circuit breaker