Ultimately, my Ph.D. is in mathematical physics, focusing on quantum field theory and curved space-time, and I worked with Stephen Hawking.

Our reactor actually burns nuclear waste as fuel. So not only is it safe and powerful, it solves an important issue: It actually reduces nuclear waste instead of creating. It's the reactor of your dreams.

Movies such as 'Citizen Kane' and 'The Front Page' portrayed an era when driven newspapermen would do anything to get a story. The U.K.'s rough-and-tumble Fleet Street remains something of a throwback to that era, as demonstrated by the recent phone-hacking scandal - which led to the demise of yet another century-old paper, the 'News of the World.'

Why pay a fee for Internet content when a million free sites are just a click away? There's no incentive until people are too addicted to the Net to turn off their computers, yet are bored with what's available.

We collectively have a special place in our heart for the manned space flight program - Apollo nostalgia is one element, but that is only part of it. American culture worships explorers - look at the fame of Lewis and Clark, for example. The American people want to think of themselves as supporting exploration.

The cloning procedure is similar to IVF. The only difference is that the DNA of sperm and egg would be replaced by DNA from an adult cell. What law or principle - secular, humanist, or religious - says that one combination of genetic material in a flask is OK, but another is not?

People who grow up in a region doubtless have a better cultural awareness of their own cuisine, but it's also true that a lot of locals go to McDonald's, Applebee's and the like.