Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
The latest on national protests. Plus, what went wrong in Yemen rescue attempt?
(CNN) - It took years and a good bit of detective work by art experts and scientists to unveil a painting hidden underneath Pablo Picasso's 1901 masterpiece "The Blue Room."
Using infrared technology, experts at The Phillips Collection in Washington discovered a portrait of a bearded man wearing a jacket and a bow tie, his face resting on his hand, with three rings on his fingers.