What's wrong with Amsterdam’s Schiphol Airport?

As quoted in Dutchhasterdam,
"..Amsterdam’s Schiphol Airport is the first airport in the world to deploy full-body scanning machines.."

Amsterdam’s Schiphol airport has begun using a new body-scanning machines at security checkpoints, the first major airport to use the technology to find metals and explosives hidden under clothing. Schiphol also is one of the world’s most modern airports, with flat-panel screens, airport-wide Web access, and iris-scanners already on offer to those who want to bypass passport lines.

And become populer discussion through slashdot.org,
T-Ray Camera Sees Through Clothes, Preserves Privacy

"...that are claimed to use Terahertz radiation ("T-rays") to detect foreign objects under clothing, without revealing body details, from a distance of 25 meters and while the subject is in motion.."

So how should we design security procedures in airport, is still a challenge for security related auditor