This is how Ford Motor Co. tries to get around the half-century-old "chicken tax." It's also a lesson in the long legacy of tariffs - and the unexpected ways that companies do everything possible to get around them. These creative workarounds are likely to become more common after the United States on Friday hit $34 billion in Chinese goods with tariffs, inviting retaliation by China on American goods - all part of an escalating global trade spat.