Anti-technology extremism documented at Nature magazine

"We are going deeper still into an era of deepening and proliferating extremisms.”
Nature website are carrying a detailed and distubing story about anti-technology activism

...a violent eco-anarchist philosophy has taken root among certain radical groups in Mexico. Mexican intelligence services believe that the perpetrators of the bombings last year were mainly young and well educated: their communiqués are littered with references to English-language texts unlikely to have been translated into Spanish. Intelligence services say that the eco-anarchist groups have been around for about a decade. They started off protesting against Mexico's economic and political system by setting off small explosives that destroyed bank machines.
But around 2008, certain groups began to adopt an 'anarcho-primitivist' perspective. (Locally, they are called primativistas, says Gerardo Herrera Corral.) This philosophy had won little notice until the past few years, but with increasing media reports of looming global climate disaster, some radical green activists have latched on to it. California-based environmental writer Derrick Jensen — whose popular books call for an underground network of 'Deep Green Resistance' cells — is a highly influential figure in this otherwise leaderless movement, which argues that industrial civilization is responsible for environmental destruction and must be dismantled.
In their writings, anarcho-primitivist groups often express deep anxiety about a range of advanced research subjects, including genetic engineering, cloning, synthetic biology, geoengineering and neurosciences. But it is nanotechnology, a common subject for science-fiction doomsday scenarios, that most clearly symbolizes to them the power of modern science run amok. “Nanotechnology is the furthest advancement that may yet exist in the history of anthropocentric progress,” the ITS wrote in its first communiqué, in April 2011....
@ Nanotechnology: Armed resistance : Nature News & Comment:

Nanotechnology is not the only target of violent extremism.

Earlier extremist criminal arson against biotechnology was perpetrated in 1999 by Marie Mason on biology laboratories at Michigan State University where experiments with genetically modified corn were being done.

Wikipedia on Marie Mason.

Marie Mason (b. January 26, 1962) is an environmental activist from Cincinnati, Ohio, who in 2009 was sentenced to 22 years after admitting 13 counts of arson and property damage amounting to US$4 million.[1][2][3] Mason, a member of the Earth Liberation Front, was prosecuted for a 1999 attack on a building at Michigan State University, East Lansing, Michigan, that caused more than US$1 million in damages,[3] undertaken as a protest against research into genetically modified crops.[1] A further US$3 million in damages included attacks on homes under construction, and on boats owned by a mink farmer.[3]

Violence against legitimate scientific research gets little criticism from anti-technology activists.

 Marie Mason's criminal actions have been strangely condoned by Indian anti-GMO activist Vandana Shiva.  Greenpeace's more recent criminal sabotage of wheat experimnents in Australia was seemingly given passive tolerance other activist organisations at the time.