And in 1976, one of my -- our closest friends in the Senate arrived.

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Many of our closest friends are Israelis, and we are comfortable with Hebrew.

WSJ: Moving to Israel: An American Couple's Experience

When it comes to using technology with our closest friends, it is texts not websites that count, he argues.

BBC: Google+ and the friends v acquaintances debate

America has never fought a war against a democracy, and our closest friends are governments that protect the rights of their citizens.

CNN: Obama: 'Peace requires responsibility'

Nevertheless, a few million of our closest friends are on a nanosecond by nanosecond basis trying to figure out all the variables at once.

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The night before our wedding, Eleanor and I stood awkwardly in the center of a large room, surrounded by our family and our closest friends.

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But over the last 10-15 years, several companies have discovered that sharing and trading can be scaled way beyond our closest circles of friends.

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