Nice video, but my concern is; you can mix to liquid chemicals and then they become explosives, i guess thats why you still have to take off your shoes and then they put em in that scanner so they can spot fluids in your shoes, if they can spot liquid explosives with magshoe that would be a true winner. But i guess you can still use Magshoe devices for minimum to medium security check points in courthouses, clubs, schools, colleges etc...