Why or Why not should the United States concern itself with what China is doing?

Uh, trading? Immigrants? WAR?

There are a lot of reasons why america should concern itself with wath China is doing, like ...

The Recycling Shortage (thingy) - China put stricter guidelines for other country's waste that they deposit to China.

Immigrants - Wonder why (maybe all) major cities has a China Town? Yeah, immigrants.

More people = Economy goes up

More tourists = Cash

War - Maybe not today, but in the past, people were concerned if China was gonna start a World War.