War."
Hah!
Another answer: Militia weapons!
Can someone explain how the DC Metro police, FBI, Secret Service, and various other law enforcement agencies can not locate a truck the size pictured? For one thing, it's not exactly a vehicle that can "blend-in" and "disappear". Secondly, there can't be very many of those vehicles licensed in Virginia or Maryland. Since it is the size of a vehicle which Freeper bloggers have conjectured could be used for terrorism; this event doesn't exact give me confidence in either weapons indiction or control of WMD in our borders!
Don't forget thinning out the pumpkin patch.