Don't expect Barton Biggs to be offering his market insights on 'Bloomberg News' anytime soon. His plumber, maybe.

Sergeant Bergdahl may have broken any number of military laws.

Mr. Snowden did not start out as a spy, and calling him one bends the term past recognition. Spies don't give their secrets to journalists for free.

Higher productivity enables companies to increase sales without adding workers. Even if job markets tighten and wages rise, corporate profits can continue to climb as long as worker productivity is growing faster than overall wages.

I strongly believe in a free market, and it is great when companies make money and pay their people well.

I don't feel comfortable defending my clothes. But if you've got the money to afford them, then buy something from me. Just don't buy too much.

There is a scenario where AI may keep U.S. soldiers off the battlefield entirely, by using AI as a strategic advantage to prevent conflict or using it to find the critical piece of information within surveillance footage.

I think an excess of anything is bad, be it mobile phones, social media, private tuitions or watching television.