Riisna became a producer of the well-known news show '' 20/20 '' at ABC News . Over the course of the next two decades she produced a series of Emmy Award winning stories , many Barbara Walter ’s high profile interviews ( Margaret Thatcher , Boris Yeltsen , Nancy Reagan , Barbra Streisand and others . ) For her work she was awarded over a dozen major awards including two Emmys , a Television Academy General Achievement Award , and Columbia School of Journalism 's prestigious Dupont Award . Her subjects included an investigation of the effects of the use Agent Orange in Vietnam and the story of the Zumwalt family
Dupont Award
Alfred I. duPont–Columbia University Award
Ene Riisna