Black Jack - S1-E13
Continuity mistake: When the truck smashes through the building to escape Black Jack Fairground, a big part of the roof falls down over the car that is following directly behind the truck. As the angle changes, there is suddenly no sign of the fallen roof, neither on the car, inside the building or on the ground next to it.
Answer: According to Wikipedia: "It was a cross-section of 'domestic militia, anarchists, and religious fanatics' – terrorist groups that would never ordinarily collaborate, ideologically or politically. The only thing that connected them was the desire to take down the federal government of the United States. The entire plan was orchestrated by someone with deep resources, an ability to coordinate diverse groups, and by all indications, an American. After someone (believed to be Thomas Valente) tipped off the terrorists about the government's knowledge of the plot, they moved up the timetable for the attacks."
lionhead