In the immediate aftermath of the attacks of Sept. 11, 2001, the CIA and other intelligence agencies worked to track down potential al-Qaida plotters around the world as the plotters tried to come up with fresh ways to sow panic in the United States.
Many of those plots were detailed in the Senate Intelligence Committee's report on the CIA's torture program, parts of which were declassified in December.
Much of the report remains secret, but the 500-page executive summary is a useful source on the early years of the war on terror, and contains several surprising stories.
Take, for example, the plot to make the Brooklyn Bridge fall down.
That was one idea...