Frustration Over The Lack Of Progress In The Search For A Missing Malaysia Airlines Jet Erupted Wednesday At A Daily News Conference, Where Chinese Relatives Of Missing Passengers Confronted Malaysian Officials. The Grieving Families Burst Into The Room Where The Media Briefing Was To Be Held, Yelling And Holding A Banner Demanding Malaysia "Tell The Truth" About What Happened To The Plane That Has Been Missing Since March 8. Two-Thirds Of The Plane's 227 Passengers Were Chinese. Many Of Their Families Have Become Increasingly Angry About What They Feel Is Contradictory Or Confusing Information Released By Malaysia. Once The News Conference Began, Malaysian Defense Minister Hishammuddin Hussein Said Authorities Are "Trying Our Very Best" To Locate The Plane And To Narrow The Search Area, Which Now Covers More Than Seven Million Square Kilometers. Malaysia's Government Says The Disappearance Of The Malaysia Airlines Jet On March 7 Was The Result Of A "Deliberate Action" By A Person Or Persons In Command Of The Plane. Many People Believe That "Deliberate Action" Was An Unprecedented Type Of Hijacking Or Commandeering Of The Boeing 777 Airliner For Unlawful Purposes. But, Investigators Have Not Yet Ruled Out Other Motives For The Diversion Of The Plane From Its Intended Kuala Lumpur To Beijing Route Before The Aircraft Vanished. Daybreak Asia's Michael Lipin Has Been Investigating What The Aviation Industry And Governments Can Do To Try To Prevent Similar Disappearances Of Passenger Planes In The Future. He Spoke With Hans Weber. President Of Tecop International, A Consulting Company Focused On Aviaton Safety And Security Issues. Weber Talked About Two Technological Improvements That He Believes Could Address Security Issues Highlighted By Flight MH-370.