Historically, privacy was almost implicit, because it was hard to find and gather information. But in the digital world, whether it's digital cameras or satellites or just what you click on, we need to have more explicit rules - not just for governments but for private companies.

U.K. companies are in very international and very competitive markets. If you look at PC penetration in the U.K., it is very similar to the United States market.

We need a malaria epidemic in the blogging community! Either that or we need people who have seen the malaria epidemic to start blogging.

India has over 20 percent of the kids born in the world. And they move around a lot.

If you go back to 1800, everybody was poor. I mean everybody. The Industrial Revolution kicked in, and a lot of countries benefited, but by no means everyone.

India just went 3 years with no cases [of polio]. Pakistan is our toughest location right now because some parts of the Taliban have not allowed vaccinators to come in and have even attacked vaccinators. We are hopeful this will get resolved since no one wants their kid to be paralyzed. I spend a lot of time making sure the polio campaign is doing the best it can. We have great computer models that help guide our activities.

Something like Windows is still an unbelievable asset but because the world is somewhat phone-centric, it's an asset that has to be managed very carefully to make sure that it's extended, and there are very interesting things that are being done with that.