I don't post often but here's another viewpoint: China's support for sanctions sounds encouraging. My problem is that I have a hard time trusting breaking media reports and a harder time trusting China or N. Korea.
We don't know what behind the scenes discussions may have occurred between China and NK. China may have told NK they must support sanctions (because of the Olympics, etc.) but that China would veto any meaningful ones.
Another possibility (a hunch) is that China is leery of NK's growing friendship with Iran, and wants to take Kim Mentally-il down a peg. Bottom line: We just don't know what China intends, but it 'sounds' good.
Chicoms may have told NorComs to blow off that firecracker.
yitbos