By now you've probably seen the NY Times's long piece on distracted driving — about how most drivers and most legislators willfully ignore the evidence of the dangers of talking on a cellphone, texting, and other electronic distractions while behind the wheel. According to this article, cellphone use while driving causes over 1,000 fatalities a year in the US. Another shoe has now dropped: it seems that the US National Highway Safety Administration blocked a proposed definitive study of the risks. The NHSA now cites concerns about angering Congress. Two consumer safety groups had filed a FOIA request for documents about the aborted study, and the Times has now made the documents public — including the research behind the request for a study of 10,000 drivers.