DETROIT - US Commerce Secretary Gina Raimondo and Chinese Commerce Minister Wang Wentao traded barbs on trade, investment and export policies in talks on Thursday described by Ms Raimondo’s office as “candid and substantive”. Their meeting in Washington was the first US-China Cabinet-level exchange in months, after a string of trade and national security irritants derailed plans for re-engagement between the world’s two largest economies. “The two had candid and substantive discussions on issues relating to the US-China commercial relationship, including the overall environment in both countries for trade and investment and areas for potential cooperation,” the US Commerce Department...