Didn't Q have a deleted post on his board that contained [] a few weeks ago? I think it was a duplicate of the Drones post that contained the [] and then it was deleted.
Post 54-56?? One of those maybe.
A kill box indicates the target area for drone attacks I believe.
Q?
There was talk during BHO presidency that he planned to use drones against citizens.
Hence the kill box. Pure EVIL.