And here's the tough part. PIE cannot ensure our safety (that's impossible). If these threats or menaces to society should not be precisely identified, then ought to not moment arguing over who they could or end up being. We must proceed from present knowledge, not from fear. How do HID access cards work? Access badges make use different technologies like bar code, proximity, magnetic stripe, and smart card for access control system. These technologies do the card a very good tool. However, t...