After the death of bin Laden by the U.S. military, the FBI sought information from computers and documents seized during the operation. The Agency found that bin Laden was planning a new attack in the U.S. on 11th September after 10 years of the events in the Twin Towers.
According to the revelation of the FBI, the group Al Qaeda, planned to attack places where there are more people, such as mass transit, especially trains, in addition they were planning to “divert the tracks” and some other attacks.
The National Security Department and the FBI encouraged the authorities to remain vigilant, however they said there is no cause for an alarm because there are no specific data yet about any developed plan.
Source: Daily El Tiempo