safety. that's ahead in this hour. two of the world's largest economies firing the first shots in what china is saying is the biggest trade war in economic history. the trump administration slap add 25% import tax on 25 billion of chinese goods. china didn't want long to respond. china retaliating on an equal amount of american products like soy beans, pork and electric cars. president trump said this might just be the beginning. he warned that the white house may eventually target more than $500 billion worth of chinese goods. analysts say this trade war could impact global markets and raise the cost of every day goods for consumers and businesses. john roberts is live for us at