Jihadist jailed for Pentagon remote-control plane plot During the investigation, Ferdaus described to undercover agents his step-by-step plan of attack, Assistant District Attorney Stephanie Siegmann said during the proceedings. The prosecutor, meanwhile, said Ferdaus told the agents he planned to use aircraft filled with grenades and mobile phone-activated explosives to bring about the "downfall of this disgusting place," the United States. Ferdaus was also accused of modifying mobile phones for use as switches in bombs to kill US soldiers in Iraq and of giving the devices to FBI agents "he believed were members of or recruiters for Al-Qaeda." According to prosecutors, Ferdaus told the undercover agents in June 2011 that he had decided to expand his attack plan to include a ground assault on the Pentagon and asked them to provide him with explosives, grenades, fully automatic weapons and a silencer. That month, he also rented a storage facility under a fake name. In July, he told the undercover agents that he wanted them to supply him with 11 kilograms of plastic explosives "to maximize the attack." Shortly before he was taken into custody, Ferdaus requested C-4 explosives, three grenades and six fully automatic AK-47 assault rifles. He subsequently placed some of the C-4 explosives inside the remote-controlled planes. A white Playboy bunny graced the tail end of one of three model planes filled with C-4 plastic explosives, slated to hit the Pentagon or blow the Capital's dome "to smithereens," he was quoted as saying in court files.