<P><B>Radar Expert, Esteemed Author Gregory L. Charvat on CNN and CBS</B></P><P>Author Gregory L. Charvat <a>appeared</a> on CNN on March 17, 2014 to discuss whether Malaysia Airlines Flight 370 might have literally flown below the radar. He <a>appeared again</a> on CNN on March 20, 2014 to explain the basics of radar, and he <a>explored</a> the hope and limitations of the technology involved in the search for Flig