A mirror is used to reflect Electromagnetic radiation and in airport security or medical facilities, they use X-rays to detect anomalies inside objects. However, I always wonder *what if I add a mirror inside the luggage or put a mirror in front of me.*

That in mind, how would an X-ray scanner see the mirror? Would it be invisible? I am sure I am not the first one to think of this, as a lot of security and criminals thought of this, however I never got an answer, so can someone tell me please?