Oh noes! Radiations!

So apparently we're all gonna get cancer from the new body scanners that they're thinking about installing at all the airports. Oh, calimity! But if wikipedia is accurate, someone being scanned with a backscatter x-ray machine will get exposed to 0.005 - 0.009 millirems of radiation. While you're actually in the air, you're exposed to about .3 millirems per hour. Unless I'm doing the math wrong, that means that a full body scan is equivalent to the additional radiation exposure of 1-2 minutes of flight time. I have a hard time believing that it's a significant danger.