Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
Will Maine enforce quarantine on nurse who treated Ebola patients?
(CNN) – Even with a narrowed search area, the underwater search for Malaysia Airlines Flight 370's data recorders will not be a quick search. Searchers will be using an unmanned underwater vehicle, the Bluefin-21, which moves at a walking pace.
CNN aviation analyst and author of "Why Planes Crash" David Soucie discusses whether searchers waited too long to switch to the Bluefin-21, and more on the underwater search.