Pros: Very informative, fun gun show, kid-friendly
Cons: Nothing "real"
The FBI tour begins in a dark, foreboding lobby. I asked why the lights are dim--the receptionist did not know. The tour perks up from there, however. The displays are well-designed and our tour guide was knowledgable about the structure, function and history of the FBI. He was very willing to answer questions, even of the "Does the FBI really do ____ like I saw in ____ movie?" variety.
Highlight of the tour: At the end, an in-duty FBI agent, who volunteers at the tour division once a month, demonstrates his left- and right-handed abilities with a number of different weapons in a shooting range. He/she explains the process of Agent Rifle Certification and welcomes questions about his/her work.
Biggest Complaint: They really don't show you anything "real". The tour takes place in a wing of the building entirely separated from the actual workplace of the FBI, and the one display that is even claimed to be real, a DNA laboratory, appeared suspiciously vacant. So don't go there hoping to flip through any top secret files or walk away with souvenir laptops.
Best News for Concerned Parents: Both the tour and the gun show that followed were performed in a child-friendly way. The tour guide did not attempt to glamourize violence and repeatedly explained that the primary purpose of the FBI is to investigate crime, that most agents never need to use their guns for law enforcement, and that they don't even want to. The agent that performed the gun demonstration spoke to the children directly and reminded them that they should never touch a gun, always tell their parents if they see a gun, and that, although it may be fun to watch a demonstration, guns are actually deadly and should never be handled without proper training.