Peacefuljeffry, I have to say I doubt it. I've counted four or five threads on this board in the past few months from people asking about E2ds and TSA airport security. No one has had a problem bringing their lights onto planes. My significant other flys with her's all the time, never had a problem. If I could get it away from her (she really likes it) I'd have no problem taking it into the various government buildings I regularly visit for work in D.C. (Library of Congress, National Archives, Smithsonian, etc.). All we are saying here is that hightened security is a reality when you enter government buildings in D.C. Is it a pain, yes. Do I find it frustrating, yes. But, I don't think anyone is coming for your flashlights.
Now, on a somewhat related issue, anyone know of any good stores that sell flashlights in northern Virginia (say the I-95 corridor)?