Silver-bullets for IED's

The other day while watching Lou Dobbs, a comment was made about Don Rumsfeld saying that there was no silver-bullet for IED's. I remember a newsreport about the Army having developed a lasar device that could detect certain kinds of IED's. That device was bacically rendered ineffective, because the story was leaked and printed in the press, and the arming of the devices changed.

And here we are all worried about poor Valarie Plame, a CIA opperative who had to come back to the U.S., BECAUSE THE RUSSIANS WERE ON TO HER(that's the secret part) and blew her cover to all of their friends.
The early newsreports were that everyone in her neighborhood knew she drove her shiney new Jag to Langley.

Where's all that congressional hand-wringing(and investigating) when you really need it?