Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
The latest on the crisis in Ukraine, plus why a 700-page book on economic theory is a best seller.
(CNN) - Russian President Vladimir Putin has insisted a "ring of steel" will be in place to keep the Olympic games safe.
But just what does that include and what does it mean if you find yourself outside the protective bubble?
CNN's Tom Foreman and senior fellow for national security at The Heritage Foundation Peter Brookes break it down in CNN's virtual room.