In late 2007, some Greenpeace activists were caught by police after breaking onto the grounds of a coal-fired power plant in England, scaling the chimney, and painting the name of British Prime Minister Gordon Brown on the stack. With a cost of 35,000 pounds to clean the graffiti, surely the radical activists would be taken to task. But astoundingly, a jury last month found the activists “not-guilty,” claiming that the threat of global warming gave them a “lawful excuse” to break the law. With Greenpeace using a similar “lawful excuse” defense a few years back after destroying an experimental field of genetically modified crops, one wonders where the line will soon be in defending acts of eco-terrorism.