Body scanner makers doubled lobbying cash over 5 years

From USA Today:

WASHINGTON — The companies with multimillion-dollar contracts to supply American airports with body-scanning machines more than doubled their spending on lobbying in the past five years and hired several high-profile former government officials to advance their causes in Washington, government records show.

L-3 Communications, which has sold $39.7 million worth of the machines to the federal government, spent $4.3 million trying to influence Congress and federal agencies during the first nine months of this year, up from $2.1 million in 2005, lobbying data compiled by the Center for Responsive Politics show. Its lobbyists include Linda Daschle, a former Federal Aviation Administration official.

Rapiscan Systems, meanwhile, has spent $271,500 on lobbying so far this year, compared with $80,000 five years earlier. It has faced criticism for hiring Michael Chertoff, the former Homeland Security secretary, last year. Chertoff has been a prominent proponent of using scanners to foil terrorism. The government has spent $41.2 million with Rapiscan.

Airport Screeners: Denied radiation badges?

From ScienceFriday:

I continue to wonder why those TSA folks who stand by x-ray machines for a whole day do not know how much radiation they are exposed to. Last weekend, one of them told me she asked for a common radiation badge and was told she could not wear one.

This weekend, when traveling through the airport at Buffalo, NY I happened upon one of those new whole body x-ray scanners. Refusing to be screened that way, I chose for a full body pat-down. Upon gathering up my stuff, I asked one of the screeners if she knew how much radiation she was exposed to each day. She said she did not know and wanted to wear one of the badges that her friend wears at a local hospital, but was told “no,” that would not be permitted. She was upset with that decision.

Why do dentists, doctors, med techs, etc.. who work in other x-ray environments gladly wear these exposure detectors on their clothing but TSA employees do not or cannot?