Peter Day's World of Business

As international trade tensions escalate, the US state of Wisconsin is a fascinating place to discover the consequences. Specialist producers like Wisconsin's ginseng growers are directly affected by the new trade war between the US and China. Traditional cheese makers meanwhile see all this as the latest round in an endless battle for freer trade in global food. And in the south of the state, a new kind of manufacturing economy is taking shape with a vast new investment by the Taiwanese tech manufacturer Foxconn. Jonty Bloom travels around the state to gain rich insights into where today's trade wars could eventually lead. Producer: Chris Bowlby Editor: Penny Murphy Picture: Wisconsin Cheese during Haven House 2007 Oscar Suite Credit: Getty Images