Stocks lower as government shutdown enters second week, Dow drops more than 100

cnbc.com - On Sunday, Treasury Secretary Jack Lew said that Congress was "playing with fire," and warned the U.S. could default in just over a week."We continue to believe that the bigger risk event for markets remains a potential breach of the debt ceiling (around the 17 October) and expect such an event to be broadly risk negative," said Barclays analysts in a morning research note.On Sunday, Republican House Speaker John Boehner warned he did not have a sufficient majority to pass legislation on raising the $16.