I should have added that apparently, it wasn't just in Pennsylvania; there were at least 6-7 states involved.
Al-Qaeda planned London attack
March 29, 2004
AL-Qaeda terrorist network leader Osama bin Laden instructed his operations chief to prepare a strike on London's Heathrow airport soon after the September 11, 2001 attacks in the US, it was reported yesterday.
In a dispatch from Kabul, Britain's The Sunday Times newspaper said it had seen transcripts of the interrogation of Khalid Sheik Mohammed, the most senior Al-Qaeda operative to be captured in the US-led war on terrorism.
Mohammed, 37, who was seized in Rawalpindi, Pakistan, in March last year, stated that he met bin Laden in the Afghan capital Kabul several days after the September 11 attacks.
"It was at this time we discussed the Heathrow operation," he was quoted as saying in the transcript.
"Osama declared (British Prime Minister Tony) Blair our principal enemy and London our target," he said.
The Sunday Times said Mohammed arranged for operatives to be sent from Pakistan and Afghanistan to the British capital where they began surveillance of Heathrow and surrounding areas. But the operation never got beyond the planning stages, he reportedly told his interrogators.
More.......
http://www.news.com.au/common/story_page/0,4057,9110115%255E2,00.html