why you paying $1000 for a treadmill??? you can pick one up that will do the job for $50 and up. and many experimenters have bought 2 or more Kinects for hacking.. without Xboxes (they just hook them to PC's...

 

and I'll have you note, I was pointing out how to solve each problem you threw up. simply....

 

Airport security is a burden we must all shoulder. Do your part, and please grope yourself in advance.