Like much of the previous research on coffee, the study was based on survey data -- in this case, a single questionnaire distributed in the mid-1990s -- that may provide an incomplete picture of the participants' overall health and lifestyle.

CNN: Coffee drinking linked to longer life

Dan Mahaffee, who coordinates research at the Center on the Study of the Presidency and Congress, a Washington-based nonprofit group, said the emails will allow researchers to get into the minds of top officials as they developed policy, instead of relying on memos written at the end of the decision-making process.

WSJ: Email Trove Is Big Job for Bush Library

The study is facing widespread criticism in Scotland for being based on flawed research - with many claiming that its recommendations would sound the death knell for the industry, rather than providing the lifeline claimed by its authors.

BBC: NEWS | UK | Politics | 'Dismay' at proposed fishing reforms

Many eye-vitamin formulations currently on the market are based on research conducted by the National Institutes of Health in a project called Age-Related Eye Disease Study, or AREDS. The first phase of the clinical trial, completed in 2001, found that a specific combination of vitamins C and E, along with beta-carotene and zinc, reduced the risk of age-related macular degeneration by as much as 25%.

WSJ: The Crucial Years for Protecting Your Eye Health

Last month, the STB commissioned a study of competition in the freight rail industry by a third-party research firm, Wisconsin-based Christensen Associates.

FORBES: All Aboard