Does WTO have any tooth?

Comments on Alan Kohler “Obama's perilous protectionism”, 15/09/2009, http://www.businessspectator.com.au/bs.nsf/Article/China-America-marraige-hits-the-rocks-pd20090915-VVSFV?OpenDocument&src=sph

It would be interesting to see what the WTO should say on the US new tariff on Chinese Tyers.

Does the WTO have any tooth to enforce its own rules, especially when it deals with world most powerful economies like the US?