If you're against globalisation, it doesn't achieve much by sort of bombing the head offices of Shell or Nestle. You unsettle people much more by blowing up an Oxfam shop because people can't understand the motive.
To take photographs means to recognize - simultaneously and within a fraction of a second - both the fact itself and the rigorous organization of visually perceived forms that give it meaning. It is putting one's head, one's eye and one's heart on the same axis.