zingales: it is a bit of both.t for the dollar not to appreciate too much in order to keep the economy going. i think the president pays a lot of attention to that. also, as we were saying earlier, it is the symbol of u.s. dominance over the world and the mind of symbol and holding the possibility of remaining there as a problem. tom: we will come back. john normand, luigi zingales, this is wonderful. this is bloomberg. ♪ erg. ♪ this is bloomberg surveillance. tom and francine from milan and new york. tom, we are trying to figure out in this global trade war, especially between the u.s. and china, the place of europe. we heard an executive say he predicts europe was becoming a lot more like japan. in the meantime, something happened in rome. a lot of the press is talking about it. a days secretary of state mike pompeo of the u.s. being presented by parmigiano cheese -- a reporter walked up at the end of a press conference ain't she is worried about tariffs on this famous italian cheese and mike pompeo, rather and v