The bottom line is how do we best provide for the security of the traveling public in light of a determined enemy who is adept at constructing well-designed well-concealed devices which would not show up in a walk-through metal detector? We're trying to employ the best technology to identify any possible threat.

As part of our layered approach we have expedited the deployment of new Advanced Imaging Technology (AIT) units to help detect concealed metallic and non-metallic threats on passengers. These machines are now in use at airports nationwide and the vast majority of travelers say they prefer this technology to alternative screening measures.

Noble deeds that are concealed are most esteemed.

Seek not to know what must not be reveal for joy only flows where fate is most concealed. A busy person would find their sorrows much more if future fortunes were known before!

No enterprise is more likely to succeed than one concealed from the enemy until it is ripe for execution.

Art is a step from what is obvious and well-known toward what is arcane and concealed.

Anger ventilated often hurries towards forgiveness anger concealed often hardens into revenge.

As winter strips the leaves from around us so that we may see the distant regions they formerly concealed so old age takes away our enjoyments only to enlarge the prospect of the coming eternity.