LONDON (Reuters) - Right-wing "nutters" in the United States Congress holding up a deal to prevent a catastrophic debt default are a greater risk to the global financial system than problems in the euro zone, a British minister said Sunday. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=oc0Rm4aFzfc:g7cqoMjPA1E:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=oc0Rm4aFzfc:g7cqoMjPA1E:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/oc0Rm4aFzfc)