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) – The underwater drone searching for Malaysia Airlines flight MH370 is nearly done scanning the search area in the Indian Ocean – and still no sign of the plane's wreckage or data recorders.
The Australians say they expect "further refinement" in the data, that could lead to the search area being tweaked again in the next few weeks.
CNN analyst and ocean search specialist Rob McCallum, and CNN aviation analyst and attorney for victims and families of transportation accidents Mary Schiavo discuss.