WASHINGTON (Reuters) - The United States is courting calamity with the continuing stalemate in Congress over raising the country's debt limit, the World Bank's chief warned on Friday. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=K-EdDTB2ZWY:nJ6BYkr34TQ:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=K-EdDTB2ZWY:nJ6BYkr34TQ:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/K-EdDTB2ZWY)