Nightly News | May 05, 2011
>>> the u.s. navy s.e.a.l.s weren't on the ground for long, but they filled their pockets while they were there. they extracted a massive amount of material, including computers from bin laden 's compount and what they grabbed is already yielding results and data. our justice correspondent pete williams has an early read on it.
>> reporter: u.s. officials said they haven't found any specific blo plots in the works, but they uncovered something al qaeda was thinking about. they were thinking of attacking a train on the anniversary of the 9/11 attacks in september. operatives talked about tampering with the rails, trying to get a train to come off the tracks in a valley or bridge. u.s. officials said they have long known that al qaeda wanted to attack trains because of the history of this terror group 's attacks and rail targets on spain, the uk, and india. a security advisory has been sent to the rail industry, advising of the threat.
>> it's amazing we already know that much considering it was grabbed sunday night.