It's a fairly old article but it does give a different, albeit misguided, viewpoint...
“Urban Explorers (UE) — hobbyists who seek illicit access to transportation and industrial facilities in urban areas — frequently post photographs, video footage, and diagrams on line [sic] that could be used by terrorists to remotely identify and surveil potential targets,” warns the nation’s premiere all-source center for counterterrorism analysis.
You might think that dude climbing across the girders of a suspension bridge late at night intends to get a good view or to write some graffiti. But the National Counterterrorism Center can’t help but notice the pathway he takes exposes “security vulnerabilities” inherent in the urban landscape, like “access to structural components including caissons (the structures that house the anchor points of a bridge suspension system)” — all of which a terrorist would find useful. Spelunking through subway tunnels might alert terrorists to “electrical, ventilation or signal control rooms.” The vantage point of a rooftop provides a glimpse useful to the “disruption of communication systems.”
To balance the article I'll add a quote from the same source... "Urban explorers probably won’t have to feel singled out for long. Wait until the National Counterterrorism Center learns about the architectural drawings available for viewing in the nearest university library, or the map brochures available to tourists at national landmarks."
Read more here... http://goo.gl/fMhuCG
“Urban Explorers (UE) — hobbyists who seek illicit access to transportation and industrial facilities in urban areas — frequently post photographs, video footage, and diagrams on line [sic] that could be used by terrorists to remotely identify and surveil potential targets,” warns the nation’s premiere all-source center for counterterrorism analysis.
You might think that dude climbing across the girders of a suspension bridge late at night intends to get a good view or to write some graffiti. But the National Counterterrorism Center can’t help but notice the pathway he takes exposes “security vulnerabilities” inherent in the urban landscape, like “access to structural components including caissons (the structures that house the anchor points of a bridge suspension system)” — all of which a terrorist would find useful. Spelunking through subway tunnels might alert terrorists to “electrical, ventilation or signal control rooms.” The vantage point of a rooftop provides a glimpse useful to the “disruption of communication systems.”
To balance the article I'll add a quote from the same source... "Urban explorers probably won’t have to feel singled out for long. Wait until the National Counterterrorism Center learns about the architectural drawings available for viewing in the nearest university library, or the map brochures available to tourists at national landmarks."
Read more here... http://goo.gl/fMhuCG