Bilal Abdulla is seen here leaving a shop with a gas canister
An NHS doctor said he had plotted last June's car bomb attack in London to give the public a "taste of fear", Woolwich Crown Court has heard.
Bilal Abdulla, 29, described how he had intended to highlight the Iraq issue by setting two cars on fire in London.
But the doctor, who has Iraqi and UK dual nationality, said he did not mean to injure or kill anyone.
He denies conspiracy to murder and to cause explosions. Dr Mohammed Asha denies helping him arrange the attacks.
Dr Abdulla said: "I wanted the public to have a taste of what the decisions their democratically-elected murderers did to my people.
"We intended to bring a device that would give just a taste, the taste of fear. It will look professional, it was dangerous, but in reality it is not."
The court heard details of an online conversation Dr Abdulla had with Kafeel Ahmed.
Ahmed died of burns a month after driving a Jeep into Glasgow Airport in the alleged bomb attack of June 2007. Dr Abdulla is also accused of involvement.
Ahmed had said he could try to design a "device", the jury heard.
Dr Abdulla told the court the plan was "to have burning cars somewhere in London".
The devices had been intended to look professional from the outside but would not have killed people.
He said: "The plan in its essence... Kafeel will use cars that will have petrol canisters at the back of the car and he will use mobile phones to ignite that petrol and the cars will burn."
When the judge asked Dr Abdulla his views on the 7 July 2005 terror attacks on London, Dr Abdulla said he had felt "horror and terror" at them.
"The opinion of all of us was that the action of killing innocent people is an atrocity. It's not acceptable by any religion," he said.
The court heard Dr Abdulla dealt with matters like buying Sim cards and sorting out the cars, while Ahmed worked on logistics and mechanics.
Ahmed made false IDs and driving licences and carried out experiments on the explosive potential of petrol, the court was told.
Dr Abdulla also revealed the attack had been planned for the day in June 2007 when Gordon Brown took over as prime minister from Tony Blair - but that they had had to delay it until the following week.
Dr Abdulla told the court that on the day of the London attack, they drove for 13 hours from Scotland with the devices in the back covered with duvets.
He said they then splashed the duvets with petrol to increase the possibility of the devices igniting.
But he said the choice of venue outside London's Tiger Tiger club, near Piccadilly Circus, was random. He denied looking at clubs and bars on the internet before hand.
Dr Abdulla told the court he had stayed in the car for six minutes to see if he was being watched, before running across the road.
These mobiles were found in the cars parked outside the Tiger Tiger club
Shortly after he used his phone to trigger the device, he realised it had not worked properly and told the court his first reaction was "disappointment".
He said: "We were scared. We knew we left clues."
'No further act'
Dr Abdulla said they spent that night in a hotel in east London and that he decided to leave the country the following morning.
He said he planned to return to Scotland, where the security would be more relaxed, and then leave the country, while Ahmed planned to "keep a low profile" in Liverpool.
"The plan was to travel and leave the country eventually. However, Kafeel decided to accompany me to Scotland," he said.
Asked if he intended to undertake any further "act", Dr Abdulla replied: "I did not intend to do any further act at all."
The case continues.