Researchers think an experimental anti-inflammatory drug for people with multiple sclerosis might help Alzheimer's patients. And they've already tried it on a man named Joe.

In an extraordinary Oval Office meeting, President Trump accosted visiting South African President Cyril Ramaphosa with a montage of video footage Trump claimed proves there was a genocide against ...

NPR's Michel Martin talks with Minneapolis' former police chief, Medaria Arradondo, as he reflects on the murder of George Floyd five years ago.