It’s probably no secret to airline pilots, and perhaps to rubbernecking passengers, that Target stores near busy airports like Chicago’s O’Hare or New York City’s LaGuardia have a large bull’s-eye on their roofs. Supposedly intended to solidify branding while alerting travelers to a nearby location, Target’s building-as-an-aerial-billboard idea may be, um, on target once map services on Google, Yahoo, and MSN really take off.