Radiation doesn't recognize borders. A meltdown in Japan or India, say, is a danger to the whole world. Wind circulates the radiation everywhere. Water quality is affected. We all eat the same fish. We use products from all over the world - if something is contaminated, it will cause harm.

These nuclear plants are more dangerous than people realize.

I think we have tremendous media covering the sport of boxing, even if boxing is a little bit lost in popularity with MMA sports. And I think that with the show 'Lights Out' it's going to get more attention to the sport, and it's going to put more attention to the problems that athletes in general have.

I don't care where people come from. It is not important to me. If you are good people will like you, if you're not, they won't. It is simple.

I think that there's only one nationality and one language in the sport, and you call it performance.

I run, but boxing conditioning is different, so you have to get used to running in the ring. Boxing movements are very different. Swimming is one of the best because every single muscle is working. I swim a lot. I train very hard at things that mimic boxing. I have to do mostly sport-specific training, such as lots of sparring.

On your way to the top, you always get some chriticism. Criticism is a great motivation.