In exile for nearly 50 years, Iran's Crown Prince Reza Pahlavi has issued calls urging Iranians to join protests sweeping the country. But support for him may not be clear…

The childhood vaccines that the CDC is dropping from the recommended scheduled have successfully beat back illness and death in children from rotavirus, hepatitis and other pathogens.

Khalil's attorneys say the government's case against their client largely rests on a memo from Secretary of State Marco Rubio alleging Khalil participated in "antisemitic" and "disruptive activities."