The incident at the Navy Ship Yard puts two NRA canards to rest.

[jimmy the one]

11. DC is may issue ccw

bob clark: D.C. doesn't have concealed carry permits. Since it's a military installation, nobody would be allowed to carry there other than guards, anyway. The shooter didn't have a handgun to start with, so the bit about him having a CC is moot.

You're not wrong, but DC is 'may issue' and allows for getting a concealed carry permit, BUT, it's almost impossible to get one, or at least it used to be prior to heller, dunno what it is now, probably still near impossible since it's discretionary & based on demonstrated need. Dunno either how they handle out of state ccw since heller.
.. I did a lot of work for the navy at that navy yard just across south capitol street bridge across the Anacostia (not Potomac) river. There's a D.E. (destroyer escort) named the USS Barry just under that bridge I worked on when it first arrived, which is docked at the navy yard - not named after him but sorta to 'honor' former mayor ('the bitch set me up') marion barry (lady was in the police sting which caught him buying coke - his d o w n f a l l).
.. It's just down the road a bit from the 'Hawk & Dove' restaurant/bar which is/used to be a popular watering hole for washingtoons. Also not far from mental institute st elizabeths. Bolling (defunct) AFB on the opposite side of the river.