I definitely agree that it's become a 'huge industry'. There are people getting huge payments for selling (and accepting) and even more people getting jobs. Of those involved, who's going to say no to that?

I was surprised that they went the airport scanner route since it'll reduce jobs. However, I suppose they've paving the way for more passive invasive technology to be sold and used in more common areas. Profits from hardware, installation, maintenance contracts and training are probably bigger than what exists now.