United States has busted a major terror plot to blow up Pentagon and the US capital with homemade drones. The arrest of a Massachusetts man Rezwan Ferdaus, has revealed he had planned to fill two remote controlled model airplanes with C4 explosive and hand grenades and direct them into the iconic Washington buildings. Ferdaus was arrested on Wednesday morning after he obtained 25 pound C4 explosives, three grenades, six automaticAK-47 rifles from FBI agents posing as Al-Qaeda operatives.