Could you help me revise this article by David Author and answer these questions?

Article link: https://www.econtalk.org/david-autor-on-trade-china-and-u-s-labor-markets/

The author notes that while the benefits of trade a spread out among many people, the costs of trade appear to be quite concentrated.

1) Why does this appear to be the case? What are some examples of these concentrated costs?

2) Did any of the policy solutions the authors discuss resonate with you? Did they seem effective or more limited? Can you suggest any alternatives?