Surely Warren knows the difference between the two.

FORBES: Magazine Article

Everybody also knows Warren Buffett's hometown, Omaha, Nebr.

FORBES: Where To Get Rich

For what it is worth, there is a rumor that Warren Buffett, who knows a lot about insurance, is eyeing an investment in bond insurers.

FORBES: Magazine Article

Ms. Warren, who grew up in Oklahoma, said she knows of her heritage through her parents and her extended family's oral history.

WSJ: Warren Says She Informed Universities of Ancestry

Here, about 30, 000 families (no one knows for sure how many) crowd into a warren of hastily thrown-together shacks on the fringes of Ghana's capital: there is no power, sewerage or running water, diarrhoea and other diseases are rife and deadly fires rapidly take hold.

ECONOMIST: Africa's population

He knows when to keep quiet and let others--Benjamin Graham on management, Berkshire Hathaway's Warren Buffett on directors, Joseph Stiglitz on the erosion of moral values--do the talking.

FORBES: Get Briefed: Jack Bogle