"Polarization" is the popular buzzword to describe the chaos that is emblematic of U.S.politics today,shorthand for the impenetrable logjam the country's two mulishly partisan goveming factions cannot seem to get beyond.With only two traditional parties dominating the U.S.political scene for over two centuries the split is unsurprising,but with tactics that threaten yet another government shutdown,both major political parties seem set on winner-take-all,without regard to reasonable compromise.On key issues,especially social services and defense spending,the Democratic Party and Republican Party are diametrically opposed and obdurate,allowing no permanent decision to be reached and leaving the public exasperated.Americans economic confidence has been overwhelmingly negative since 2008,and only one out of every four is satisfied with the way things are going in the nation.