A new single-pill treatment for HIV has shown promising results. This is particularly useful for people who have had HIV for decades.

President Trump said the ongoing strikes on Iran are the best chance to strike at its nuclear weapons program. But that's the same program he said, not long ago, was completely obliterated.

Ayatollah Ali Khamenei died in the bombing of Iran over the weekend. Vali Nasr of Johns Hopkins University talks about Khamenei's role as one of the most influential Shia clerics in the world.