Anti-terrorist police found details of the discussions on a jihadi site run by one of a three-strong “cyber-terrorist” gang.
They were discovered at the home of Younis Tsouli, 23, Woolwich Crown Court in south east London heard.
One message, thought to have been sent on February 12 2005, read: 'We are 45 doctors and we are determined to undertake jihad and take the battle inside America.
“The first target which will be penetrated by nine brothers is the naval base which gives shelter to the ship Kennedy.”
This is thought to have been a reference to the USS John F Kennedy, which is often at Mayport Naval Base in Jacksonville, Florida.
The message discussed targets at the base, adding: 'These are clubs for naked women which are opposite the First and Third units.”
It also referred to using six Chevrolet GT vehicles and three fishing boats and blowing up petrol tanks with rocket propelled grenades.
Tsouli replied to the message by saying “He needs the recipe for making car bombs,” and a “recipe” was supplied by one contributor, including gas cylinders as one ingredient.
Investigators have found no link between the Tsouli chat room and the group of doctors and medics currently in custody over attempted car bomb attacks in London and Glasgow.
However, sources said it was “definitely spooky” that the use of doctors for terrorist purposes was being discussed in jihadi terrorist circles up to three years ago.
What's 'spooky' is that this discovery didn't prompt British authorities to tighten their scrutiny of Muslim physicians in Britain two years ago. The jihadists have a track record of doing the things they brag about planning. Shouldn’t the authorities have learned long since to take these kinds of threats seriously?