Is the GOP Tearing Itself Apart over Obamacare?

Tea Party Republicans are making themselves heard with a challenge not just to Obamacare but to their own leaders on Capitol Hill. Can they shut down the government? Refuse to let Washington pay its bills? Will their own party take the blame if there's financial upheaval? Also, UN weapons inspectors present their report on Syria, and Larry Summers won't be a candidate to head the Federal Reserve. Why were Senate Democrats opposed? What's the message for their Party's future?

Banner image: Heritage Foundation billboard in Times Square reading, "Warning: Obamacare may be hazardous to your health," courtesy Heritage Foundation