Cities wage high-tech battle against graffiti
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Global positioning systems (GPS),  digital photography and computer databases are joining the  humble paint can as U.S. cities battle to obliterate graffiti  and catch its shadowy perpetrators.
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The guerrilla artist known as Banksy and others draw murals on the controversial barrier to boost tourism in a city still struggling economically.
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MADISON, Wis. - There's so much graffiti on a Milwaukee bridge it must be legal. That's the argument a man busted for tagging a city bridge made to the 1st District Court of Appeals. The court didn't buy it and upheld his sentence Tuesday.
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Cities and towns are jumping on the Wi-Fi bandwagon. But a municipal model of connectivity may be tricky to pull off.
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By Jim DeBrosse Staff Writer  For parents losing the war against children who spend too much time in front of TVs, video games and computers, there are high- tech weapons available to fight back.
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Thanks to new high-tech gear, opponents in golf and racket sports can be across town - or across the country.
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Cities are the future of the world, and slums are the future of the city.
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New urban architecture applies its art to self-defense, in the face of fears of attack.
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A Dutch town installs street mikes that use acoustic-recognition tech to listen for signs of aggression in the
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Sharp designs and colors fight the impression made by older devices.
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Working around bats, bugs and dripping silver balloons, dancers overtake New York CityÂs public places.
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Printing several versions of a newspaper in the same city, each with ads aimed at a specific neighborhood promises to yield increased sales of Kodakâs high-speed production printers.
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Two firms are racing to map the world as the Internet goes increasingly mobile with ever more sophisticated gadgets for people on the move.
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CHOROTIS, Argentina - This is an old railroad town, with severed telegraph lines dangling from track-side poles and a depot where graffiti is the one obvious sign of recent activity.
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NEW YORK The streets of this city and the roadways leading into it were vehicular combat zones. Big trucks ruled the highways. But their size turned against them in tight urban quarters, where motorized guerrilla warfare raged and speed and agility were needed to do battle with yellow cabs.
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SAN FRANCISCO  - Technology is proving crucial as Southern California residents fight raging wildfires. They're using text messages, video, blogs, Google maps and databases to describe the chaos, find missing people and share strategies.
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Cities in the US are using a global positioning software system in their efforts to control graffiti.