World's tiniest baby boy leaves hospital

His mother wasn't sure if he would survive, but after spending five months in a hospital hooked up to machines, the world's smallest baby boy has finally gone home.

FDA chief: Feds may have to step in on state vaccine laws

The head of the US Food and Drug Administration says that if states don't require more schoolchildren to get vaccinated, the federal government might have to step in.

Elizabeth Warren to release universal child care plan

Democratic presidential candidate Sen. Elizabeth Warren is set to release a sweeping universal child care plan on Tuesday that would guarantee child care from birth until the time children enter school.