The long wait for answers about what happened to Malaysian Airlines flight 370 pushes into its third week. We’ll take a look at what went wrong, plus the potential for new technology to make finding a missing plane easier, from streaming black boxes to real time cockpit audio. We’ll talk with lawmakers – Rep. Patrick Meehan and Rep. Adam Schiff - who have studied the issue and think it’s high time to move beyond the 1960s technology. Plus, we’ll talk with a pilot about what hesitations there may be to the new technology.

With a search area over two million square miles, questions persist if the plane will ever be found. We’ll talk with experts in ocean drift pattern and tide currents to find out what goes into figuring out the clues that can lead to where the plane went down. Plus, underwater search and rescue expert Curt Newport, who helped find the Challenger Space Shuttle and TWA Flight 800, on how they retrieve vital information if and when the plane is found.

And turning our attention to the family members whose loved–ones are missing, we’ll talk with the Reverend Earl Johnson, former National Disaster Spiritual Care Manager for the Red Cross, about what the families of the missing go through during these events.

Then, the breakdown in U.S.- Russia relations may just be starting. We’ll talk with the White House Deputy National Security Adviser, Tony Blinken, about whether there’s a diplomatic way to reset the relationship. Plus, Former Secretary of State Madeline Albright on what the Crimea annexation means for Russia’s cooperation with ending the war in Syria and sealing a deal with Iran over its nuclear program.

And our panel political panel - Newt Gingrich, USA Today’s Susan Page and Neera Tanden – on the White House’s big push to get people enrolled in ObamaCare, and what the March 31^st numbers could mean for the numbers in Congress on November 4^th.

State of the Union airs Sundays at 9am and noon ET.