Set photos have surfaced that show Washington D.C. vehicles on the set of Batman v. Superman. Rumors have been circulating that Superman will be in unfriendly terms with the US Goverment after the destruction of Metropolis in the Man of Steel film. These images seem to support this rumor.
Interestingly, in the Dark Knight Returns, (the comic in which the film draws heavy inspiration) Superman is a goverment lap dog. If the rumor turns out to be true, it means the comic wont be followed as closely as we first thought and leaves some uncertainty about the story line. This could turn out to be a positive thing, as comic films that adhere too close to a specific arc sometimes become too predictable. *cough* Winter Soldier*cough*