The two men may belong to the same system and want the same thing, but they are formed by different experiences.

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However, closer examination revealed differences between men and women in two key components of the immune system - T-cells, which protect the body from infection, and B-cells, which secrete antibodies.

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You might think that the men leading the U.S. financial system might have an idea or two (or three) about what to do about the fiscal cliff, that series of tax hikes and spending cuts that threatens to hurtle the economy into recession.

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In an eight-year heyday in the 1990s at Immunex, the two men helped discover some of the most important new drug targets in decades, unearthing a family of immune-system genes.

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The 1876 contest was between two respected men, Samuel Tilden, the Democratic governor of New York, who had broken up the Tammany Hall corruption system, and Rutherford Hayes, the Republican governor of Ohio.

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