OverTheGeicoE writes "ProPublica has a story on how x-ray scanners became the controversial yet mandatory security fixtures we in the US must now endure. The story title, 'U.S. Government Glossed Over Cancer Concerns As It Rolled Out Airport X-Ray Scanners,' summarizes a substantial part of the article, but not all of it. The story also describes how government attitudes about the scanners went from overwhelmingly negative in the early 1990s to the naive optimism we see today. How did this change occur? The government weakened its regulatory structure for radiation safety in electronic devices, and left defining safety standards to an ANSI committee dominated by scanner producers and users (prison and customs officials). Even after 9/11 there was still great mistrust of x-ray scanners, but nine years of lobbying from scanner manufacturers, panic over failed terrorist attacks, and pressure from legislators advancing businesses in their own districts eventually forced the devices into the airports. The article estimates that 6 to 100 cancers per year will be caused by the x-ray scanners."