This is the point.  Bulls' eyes had been used for decades, there is even a famous store that nearly anyone in the USA can see....with a bulls' eye sign.  Racheting up the imagery to rifle sight/hairs, that's the escalation.  No,  they aren't the same thing at all.  And, there is no way to prove that sicko Laughner did not see the maps, and was not affected by all of the violent rhetoric, constant calls for "reloading", for instance.  The editor made a mistake, and soon corrected it.  That's all, folks.