What are the full relevant details of the steps that she has taken with her counterpart in the Communications and Digital Technologies, to ensure that SG technology can be rolled out in the Republic without harming human health and/or causing environmental degradation, particularly in light of the significantly intrusive provisions regarding the installation and deployment of electronic communication networks contemplated by the proposed amendments to the Environment Conservation Act, Act 73 of 1989, and given the precautionary principle embodied in the National Environmental Management Act, Act 108 of 1998?