The world is already filled with small and scattered wireless sensor networks covering local areas in factories and farms, homes and offices and increasingly cars and people.
Things got serious when scattered groups of self-described Black Block anarchists, wearing all-black outfits with handkerchiefs or hoods covering their faces, started to smash windows and trash businesses, giving special attention to companies such as the Gap and Nike that have been accused of using low-wage or child labor to produce some of their merchandise.