If the terrorists don't get you, cosmic rays will. Excerpt from the Wall Street Journal:
Though not widely known, in-flight radiation is becoming a growing concern
among researchers, crew members and the fliers who have to log thousands of
miles a month. On any flight, radiation from stars penetrates the airplane,
and experts say repeated exposure may be a health risk, similar to getting
too many X-rays. The issue has not only led to changes at some foreign
airlines, but prompted the FAA to set up a new radiation Web site. And next year, the
U.S. government plans to release findings on the long-term effects on crew
members, covering everything from miscarriages to cancer.
