By Chen Yun and Jake Chung / Staff reporter, with staff writer Opposition proposals to shift responsibility for Taiwan’s military drone development from the Ministry of National Defense to the Ministry of Economic Affairs have no international precedent and would weaken defense planning, a source familiar with national security issues said yesterday on condition of anonymity.Ministries and agencies overseeing industrial policy can help with administrative operations, but cannot assist with defining operational requirements, distinguishing between military and commercial specifications, or understanding how equipment acquisition ties into logistics and maintenance, as these all involve classified information, the source said.The Chinese Nationalist Party (KMT) and the Taiwan People’s Party