We've taken on the major health problems of the poorest - tuberculosis, maternal mortality, AIDS, malaria - in four countries. We've scored some victories in the sense that we've cured or treated thousands and changed the discourse about what is possible.

The biggest public health challenge is rebuilding health systems. In other words, if you look at cholera or maternal mortality or tuberculosis in Haiti, they're major problems in Haiti, but the biggest problem is rebuilding systems.

Once brave politicians and others explain the war on drugs' true cost, the American people will scream for a cease-fire. Bring the troops home, people will urge. Treat drugs as a health problem, not as a matter for the criminal justice system.

If you're too embarrassed and want to hide behind your computer screen, that's what this is for. It's about building confidence and that's what U by Kotex does. Girls owning their bodies and health.

One of the jewels in the crown of Labour's time in office was the rescue of the National Health Service. As the Commonwealth Fund, the London School of Economics and the Nuffield Foundation have all shown, health reforms as well as additional investment were essential to improved outcomes, especially for poorer patients.