From Environmental Grafitti:
"A looming shape becomes visible through the gloom and Perez, who drives these roads every day, knows exactly what it is - he swerves, losing control of the car, sparks go flying and for a brief moment his life flashes before his eyes, yet somehow he wrestles the wheel round and brings the vehicle to a controlled stop. The taxi driver and his passengers have narrowly avoided become the latest victim of the Venezuelan terror blob, a horrifying monster that has so far claimed the lives of over 1800 people.
Venezuelans call it La Mancha Negra - The Black Stain - but the layer of thick goo covering an eight mile stretch of road outside Caracas resembles a terrifying blob straight out of a 1950’s sci-fi movie and just like the latter, it has been responsible for hundreds of deaths. So what is it and where did it come from?
Many explanations have been offered, from extraterrestrial intervention to poorly made asphalt road, but the Venezuelan government remains mystified - even experts flown in from around the globe have been unable to shed light on it. And whilst the authorities remain stumped, the blob has not only expanded to over one hundred times its original size, but killed hundreds of motorists.
Whatever the hell it is, it appears to be on a large stretch of road and growing...
Over 1800 people have been killed on an eight-mile stretch in the last five years - an astonishing tally - and although the blob may not be directly responsible for all them all, the danger posed is plain for all to see.Sounds dangerous! If its some kind of organic toxic sludge then its not just a hazard for motorists, that's for sure.
Ruth Capriles, Venezuela’s foremost whistle-blower and author of the two-volume ‘Corruption Dictionary’ - a compendium of the nation’s corruption cases - has her own theory on the blob: she thinks political opponents of President Carlos Andres Perez were dumping oil on the roads to make his government look bad. “There could be corruption, but who knows for sure? Everybody is giving a different explanation.” Then there is the theory that raw sewage from slums somehow is flowing under the roads and triggering a chemical reaction in the asphalt.