=+their robots. To date, Lego has done nothing to stop this open source movement even though thousands of Lego ’ s customers now operate their robots with software the company didn ’ t produce or endorse and can ’ t support. In fact, Lego actively supports the open source movement by providing source code on its site. 53 There is said to be some danger: software that others develop may end up damaging the robot ’ s expensive infrared sensors and motors. 54