Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
What's the U.S. plan on Russia's "all out" invasion? Plus, a look at the strategy for fighting ISIS.
(CNN) – Twenty-one people were slashed, or stabbed at an attack at a Pennsylvania high school early Wednesday. Some suffered life-threatening injuries, but doctors expect all of them to pull through.
Chief medical officer at Forbes Hospital Dr. Mark Rubino gives CNN an update.