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 has been nearly four weeks since Malaysia Airlines Flight 370 vanished with 239 people on board. Those in charge of the search effort have vowed to keep looking not just for months and years, but until "hell freezes over."
CNN's René Marsh has more.