drug/bomb sniffing dogs?

[Rich Schroeder]

I really think that the use of bomb and drug sniffing dogs would be much more effective and less intrusive than the current measures at the airports. I know that they are used sometimes behind the scenes for luggage...but what about using them right there in the security lines? I think that would be intimidating for any proposed terrorist. I also can't imagine that the cost would be any more than employing all those TSA employees and scanners. In addition, it would move the lines along much more quickly IMO.

Any drawbacks to this? Other thoughts?