you from new york city for a jam packed show which includes professor of economics americas at university of massachusetts amherst richard wolfe plus we look again at hacking and from an interesting angle with r.t. correspondent trinity charges plus we're also joined by the c.e.o. of kony says limited tom kaufman to find out about a new crypto currency and monetary system all that ahead but with so much we get right to it. to help get an economist perspective on some of the issues of the day we are once again pleased to be joined by professor of economics of america university massachusetts amherst richard well professor thank you so much for being with us again and it's good to be with you in person to be here so you know you talk about trade all the time and we're in the middle of all these trade wars and we get all caught up in sort of the issues of the day and what did the president tweet and who did he offend this day or the next but give us a little perspective sort of a primer on trade over the years and the use of tariffs well basically a tariff is a tax. and they said government deciding to put a tax on