I dunno why everybody in the Federal Government needs to be armed, unless the current administration feels that at some point it's going to need to defend itself from the "Commoners" and is indoctrinating enough people in the bureacracy to do that effectively.
They'll probably need that support, because many in both the Government and the military will immediately defect to the citizen's side. Sheriff's Departments across the country have stated that they will not defend the federal government should it come to that, as have many police departments and other local law enforcement agencies . .
Kinda leaves the Feds twisting in the wind . . Hmmmm?
Maybe that's why they need so many DHS people and tanks and things . .