why does china continue this policy that leads to these disputes between some of its leading partners including the u.s.? whether it's minerals or other products sf. >> japan has a huge employment problem itself. it has to produce, i don't know, millions of jobs every year. to keep its -- to keep growing and to, you know, accommodate people who are moving from rural areas to urban areas. so, you know, they have faced pretty significant social unrest, if those people aren't immroid and happy. so, i'm sure from their point of view that they're, you know, they think they're pursuing a perfectly sensible idea to keep their people employed. they think that those policies are unnecessarily discriminatory and hurt, you know, foreign firms much more than are allowed under china's commitments to the wto. so, you know, it's only natural that there's going to be some pushback on that. >> the u.s. trade representative ron kirk wanting to make sure that china obliges by these global trading rules, who enforces those rules? >> we're talking about the world trade organization. china joined the world trade organization in 2001, and you know, some people expect t