My first thought-maybe this was intentional, a sort of a domestic Fast and Furious.
Have to keep those Chicago gangs well equipped.
I am surprised that useful Commie mayor and police chief have not banned all trains from Chicago yet.
Imho, the way the administration gets away with so much is to have story after story trump the previous one, and then wait for or precipitate something like Aurora or CT to wipe the news cycle 'clean', or try to kick a family off a ranch or call someone a 'racist' to push their stuff out the back door of the average American TV viewers minds (if it ever made the tube).
By the time the latest overblown kerfuffle settles down, people (short attention spans) have generally forgotten about the last series of scandals and misdeeds.
Simple, but damnably effective PSYOPS tactic.