Dr. Robert Grant

It’s been over a year since The FDA approved Truvada, a once-a-day medication that prevents HIV infection. But for some reason, it's not catching on. The lead scientist who developed the treatment explains why.

On today's Please Explain, we’ll look at plastic surgery, from liposuction to Botox to rhinoplasty, and what happens when someone goes under the knife to improve his or her appearance. We'll be joined by Dr. Robert Grant, Chief of Plastic and Reconstructive Surgery at New York Presbyterian Hospital ...