Suppressed US Study on Dangers of Mobile Phones in Cars

And this from a piece in the Silicon Valley Mercury News (Roadshow: Withholding of cell phone data infuriates many drivers):

The Times reported that six years ago the National Highway Traffic Safety Administration proposed a far-reaching study of 10,000 drivers to assess the safety risk posed by drivers yakking on cell phones. The agency estimated that cell phone use caused about 955 fatalities and 240,000 accidents nationwide in 2002.