Authorities think the perpetrators may have had some experience climbing in construction or bridgework. There’s some indication of preoperational planning. The New York City Police Department admitted they don’t know who committed the security breach or how they accomplished it. They have surveillance video of a group of four or five individuals walking onto the bridge shortly after 3 a.m.. “At this time there is no sign of any particular nexus to terrorism or even politics, “the police concluded about the incident. “We don’t take these things lightly, or as a joke, or as art or within the realm of speech,” deputy commissioner John Miller said. Fed real-time security camera footage trained on areas affecting the structural integrity of the bridge didn’t capture the flag bandits. The motive for the act remained unclear. More than 120,000 vehicles, 4,000 pedestrians and 3,100 bicyclists cross the Brooklyn Bridge every day.