CNN CNN Newsroom Live January 5, 2016 05:26:00
Live on a very sunny day there in beijing. monday's market slide in china could have been a whole lot worth. circuit breakers stopped trading in times of extreme volatility. richard quest explains how it all works. >> it was the first major test of these circuit breakers. and nobody could have really forecast exactly how they were going to be so tested to destruction. the reasons why they were activated, first of all, you had a jolt of bad manufacturing data. there was the 10th month of shrinking factory activity. that's the fundamental reason that starts the whole process off. the chinese e...