The next day, an eco-anarchist group calling itself Individuals Tending Towards Savagery (ITS) claimed responsibility for the bombing in a 5,500-word diatribe against nanotechnology that it published online. Police found a charred copy of a similar text in the detritus of the explosion. The bombers said that Herrera had been targeted for his role as director of the technology-transfer centre at the Monterrey Institute of Technology and Higher Education (commonly known as Monterrey Tec), “one of the major universities that has staked everything on the development of nanotechnology”. The text talked of the potential for the field to cause environmental “nanocontamination”, and concluded that technology and civilization as a whole should be held responsible for any environmental catastrophe. Chillingly, the bombers listed another five researchers at Monterrey Tec as presumptive targets, as well as a further six universities.