[conservative in nyc]

A geiger counter doesn't obtain information about the interior of a home. It obtains information about the air immediately adjacent to the home. You can't find out what's going on inside merely by checking radiation levels. The only thing you can find out is that there is an abnormally high level of radiation near that location. An infrared scanner is much different in that respect.

[oceanview]

while I agree with you, I am not so sure the SCOTUS would. when you've got Scalia joining that kind of decision.

[ironman]

"A geiger counter doesn't obtain information about the interior of a home. It obtains information about the air immediately adjacent to the home."

Not accurate.
http://en.wikipedia.org/wiki/Geiger_counter