A century ago, the philosopher John Dewey coined the term "social endosmosis" to describe an ideal democracy, made up of many parts dependent on each other. He warned of the dangers of a community whose interests limit "full interaction with other groups, so that its prevailing purpose is the protection of what it has got, instead of reorganization and progress through wider relationships. ... isolation makes for rigidity and formal institutionalizing of life, for static and selfish ideals within the group."

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A gene-therapy trial by London researchers has seen remarkable success in finding a long-term cure for hemophilia A.

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Sen. John Kennedy (R-LA) questions Matthew Spencer Petersen, President Trump's nominee for district court judge, about his lack of experience trying cases in court.

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Sources in the Senate tell CNN they have been worried about Sen. John McCain recently, following a week when the Arizona Republican was kept from the Senate to address side effects from his brain cancer treatment.

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Take a look at 29 photos of the week from December 8 through December 14.

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CNN's Poppy Harlow returns to Michigan, which helped Trump claim the presidency one year ago. Voters here said they wanted the president to reform health care, repeal NAFTA, and build a border wall. Now, they say they don't blame Trump for delays in his agenda, and wish Congress would get out of his way.

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A 16-year-old high school student from Breaux Bridge, Louisiana celebrated with his classmates after opening his acceptance letter to Harvard University.

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An Ohio driver accused of plowing into a crowd protesting a white nationalist rally in Charlottesville, Virginia, this summer, killing one woman, now faces a first-degree murder charge.

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Does Christmas music put you in the spirit of giving or turn your heart two sizes too small?

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Republicans have an aggressive schedule for getting their tax plan through Congress, but with a vote on final passage coming as early as Monday, congressional observers are keeping a close eye on a handful of GOP senators who can prevent or pass the legislation.

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